The HIDDEN Technique Behind Incredibly Realistic Portraits

What makes some portraits feel so alive? No matter how hard I tried, I could never capture this lifelike quality. My portraits always look like cartoons until I learned the power of edge control. So I'm going to show you why refining edges matters so much for realism and how you can use this technique to make your portraits look like they're about to step right off the canvas. So what exactly do I mean by edges? When you paint from life, you need to convert the three-dimensional world in front of you into flat shapes of color that fit together on your canvas like the pieces of a jigsaw puzzle. The edges are the boundaries between these flat shapes. Here, I'm simplifying my subject into just two main tones, the lights and the shadows. Once these shapes have been placed accurately, you can already start to recognize my model, Joseph. But as you can see, my painting still appears completely flat. To make my image appear 3D and lifelike, I need to refine the borders between these shapes. How you handle these transitions is crucial for realism because they describe the structure and form of your subject, mimic the texture of different surfaces like hair or fabric, and most importantly, they control where your viewer will focus their attention. But in order to paint convincing edges, you need to understand what causes different kinds of edges, how to identify them, and how to recreate them with actual brush strokes. So let's break down exactly what creates different edges. Remember how I simplified my subject into just two main values? Well, the same thing that creates these big shapes affects the boundaries between them, light and dark. So edges are really just transitions in tonal value. If one shape is much lighter or darker than another, the edges between them appear more clearly. But if the values are closer together, the transitions are softer. Realist painters usually group edges into four main categories. Lost edges, where two shapes are the same value, the edge completely disappears, like the side of Joseph's nose. Soft edges, these describe a change in form, like where a shadow turns towards the light. Hard edges occur where there's a strong contrast in value, like the outline of a dark object against the light background. But remember, hard edges are actually very rare in nature. Too many will quickly make your painting cartoonish, destroying its realism. That's where the final category comes in, firm edges. Even along a clearly defined outline, not all the edges will appear equally hard. Only where you focus will look sharp, and everywhere else will soften. So when you're painting, you need to look for just one or two main focal points, then soften the other areas ever so slightly. This is what will make your work feel truly real. To show you exactly how I achieve all these different kinds of edges, I'll be painting a portrait of Joseph, filmed at a recent workshop in Berlin. If you want early access to workshops or my online program when I open places in January, there's a link below. There are probably as many ways to create edges with oil paint as there are different types of edges, but they mainly fall into two categories. Blending, mixing colors together right on your canvas, and painting the transitions by applying intermediate values with clean, deliberate brush strokes. You can blend with your brush, your finger, or a palette knife. You can hatch like you would with a pencil, or you can drag colors into each other. Here, I've blocked in the larger shapes like the hair and the background, and I'm starting to add a cooler color for the beard. Notice how the stubble gradually fades into the warmer flesh above it. To achieve this soft transition, I'm dragging some of the flesh color down into the beard. Blending like this takes real control and finesse. It's where most beginners go wrong, and why they're often advised not to blend, because it's so easy to overdo it. Oil paint is a messy liquid. If you fiddle around too much, your colors will quickly turn to mud. If you blend, use just one carefully placed brush stroke, then stop. If it doesn't look right, resist the urge to keep going over it. Scrape back and start again. Later on, I'll show you a few situations where blending is useful, but first, let me show you another way to create soft edges that's much easier to control. Remember, edges are transitions in tonal value. Once you identify a softer edge, mix the intermediate values on your palette and apply each one with a clean brush stroke. Here, I'm placing a value between the flesh color and the highlight along the edge of the cheekbone. Notice how this already makes it appear rounder. Think of this like sculpting. First, you carve out the big planes, then with each subtle shift in value, you chisel away smaller and smaller planes to refine the form. If you want a smooth classical finish like a Bouguereau painting, add more shifts with smaller brushes. For a looser painterly style, try to model the form with fewer bolder brush strokes using larger brushes. But remember, when artists talk about loose painting, they mean how it looks, not how it's done. Bold visible brushwork comes from deliberate control of value and edges, not freeing yourself up with wild random marks. Try to touch the canvas as little as possible. This takes real discipline. I still catch myself continually fiddling around as I edit these videos. It's painful to watch. Whenever you find yourself overworking, scrape back and try again. You'll often need several attempts before you get the edge just right, but each time you should need fewer brush strokes. The old saying, less haste, more speed, definitely applies to painting. Mastering this process of slowing down and holding back from fiddling is the real key to beautifully refined painting. I'm now starting to work on the area just above the bridge of the nose. To refine these smaller shapes, I'm switching to smaller, soft-haired brushes. The softer hair lets me apply paint cleanly on top of wet layers, while stiffer brushes are more likely to disrupt the paint underneath, mixing the colors together. Achieving the right edge quality can be really tricky without the right kind of brush. Up until now, I've mostly been using Filbert bristle brushes. These are flat with rounded ends, making them incredibly versatile. Their shape naturally gives you softer edges as they blend colors together, but you can also get firmer edges by turning them on their sides. Flat brushes, on the other hand, are perfect for creating really crisp, hard edges, so it's also useful to have a couple of these. They're ideal if you want a more structural, mosaic-like style, where each shift in value or plane has its own separate tile, a technique sometimes called a flat brush style. Try experimenting with different types. Once you find brushes that you like, you'll be surprised at how quickly your style evolves. Here, I'm starting to add small details to the eyes. How you paint these is absolutely crucial for creating the illusion of realism. The eyes are the main focal points, anchoring the viewer's attention and bringing together the whole portrait, but you need to be selective. If you add too many details, they'll distract from each other, destroying the illusion. A classic mistake is to stare into the eyes and paint everything that you see, irises, pupils, highlights, eyelid creases. If you leave all of these with hard edges, your eyes will quickly end up looking cartoonish. Instead, squint and look for just one or two accents. In this case, the hardest edges are the fold of skin above the right eye and the highlight on the lower eyelid. Everything else, like the edges of the irises, is slightly softer. And remember, when we look at someone, we only ever focus on one eye at a time, so none of the edges of the left eye will be as sharp as the accents on the right. There are very few hard edges in nature, so use them sparingly. As a wise artist once said, the secret to realism is always knowing what to leave out. Once I've finished the eyes, I'll start refining the area around the nose. Here, I'm placing the shadow created by the nasolabial fold, the fold of skin that curves down from the side of the nostril towards the corner of the mouth. The edge at the top of this shadow is soft where the flesh turns into the cheek. Because the value in between the shadow and the light is so narrow, it can be really fiddly to paint. Instead of trying to outline this edge with a thin line, I'm blocking in the whole shape with the edge colour first. I'm then placing the darker shadow inside it with a smaller brush. This makes painting the small transitions much easier. I'm using this same approach for the corners of the mouth, placing the whole shape with the edge colour, then adding the dark accent inside. These edges should always be soft where the flesh curves away into the surrounding muscle. In fact, there are hardly any hard edges around the mouth. A common mistake is to leave outlines around the lips, making your sitter look like they're wearing lipstick. Softening the lips will instantly make your portraits more lifelike. After the mouth, I'm moving on to the jaw. It's always best to make sure all the features have been placed correctly before refining the outer edges of the face. You risk having to redo hours of work if something is off. There's nothing more frustrating than spending ages on a beautifully refined jaw, only to realise the mouth was a bit too high. When refining the jaw, striking the right balance between structure and softness can be really tricky, especially with women. Softening it too much will make your sitter look heavier. Leave it too sharp and the portrait can feel unfinished. When you get it right, your viewers won't even notice the jaw as their attention will be focused on the features. But if the jaw isn't well refined, it will distract from everything else. The other edges you need to pay attention to are at the hairline. Capturing the variety of hard and soft edges here is really important for creating the realistic appearance of hair, much more than painting individual strands. Instead of trying to paint each hair, which will end up looking like cartoon spaghetti, leave visible brush marks so the hairs of your brush mimic the texture of hair. You'll also notice shifts in colour temperature. Warmer notes where the hair casts a shadow onto the skin and cooler notes where the scalp is visible through the hair. As the hairline fades into Joseph's forehead, I see a colour that's cooler than the flesh but warmer than the hair itself. So I'm using a more saturated pink violet here. Often colours will look more intense where there's a more pronounced temperature shift. Next time you paint hair, look for these edges and colour changes. You'll be surprised how much more convincing it looks with very little detail. Next, I'm refining the left side of Joseph's face, which stands out clearly against the light background. But if I leave this edge hard all the way along, the face will look cut out like a drawing, not like a real person. In reality, we never focus on the whole outline at once. Some areas appear sharper than others. When I squint, the edge is hardest near the cheekbone. So I'll keep it hard here and I'll soften it a little down by the chin. I'll also lighten the shadow on the forehead, bringing it closer in value to the background so the edge appears softer. Here, I'm painting some of the background colour into the forehead, losing the edge completely just above the eyebrow. It's these lost and found outlines that will make your portraits feel really alive. Sometimes, blending with your brush is the best way to soften edges like these. But try to do it with a single brush stroke. Don't fiddle around. If you mess it up, scrape it back and do it again. Remember, edges are just transitions in value. So it's often easier to apply the in-between values with clean brush strokes. But before you can refine edges, there's an even more fundamental skill you need to master, simplifying your subject into big shapes. Watch this video next to learn how.