Next, using a semi-bright color, I go ahead and add scales throughout the drawing in a subtle pattern. Because we're painting a dragon, they will have scales ranging in various sizes, like dinosaurs. Unlike snakes, having evened patterned scales, a dragon has a larger body mass, so scales will be randomized in size and patterns. Next, I go ahead and take a brighter color than the last, and highlight the areas which has the strongest source of light. Basically, we're shading with various tones, brighter than the last. It makes the overall process MUCH easier than initially shading with a solid bright color.