Use multiple colours for a solid colour
Adding subtle colours to a solid colour item creates a more interesting effect. When painting any item, I try to incorporate many colours into it. The main colour will be whatever colour I’m using, but I’ll also add very subtle hints of purple, blues, pinks, yellow, orange and so on. This gives a wonderful sense of life to the subject I’m painting, something that’s especially important for painting skin tones. Skin is never just one solid colour, of course. Depending on lighting, emotions, freckles and so forth, skin will have all sorts of subtle colours in it. This rule can is true for a number of other subjects, too.