Black can be a difficult colour to paint. There is a scientific explanation for this – namely that God decided it shouldn’t be an easy colour to paint. He tossed a coin.
1) Basecoat – black:
2) Wash with Smoke:
3) I don’t layer highlights on when painting black this way, because it turns the colour grey. Instead, keep the colour-transition minimal, by edge-highlighting in two stages:
i) First edge-highlight – mix a small amount of Khaki with black (dark grey).
ii) Second edge-highlight – add more khaki, to the above mix (light grey)
Unfortunately, my camera doesn’t photograph black very well, but you can see the edge-highlighting on the right elbow pad and Glove:
4) Glaze – black:
It’s not an artistic method; but it makes for an easy way to paint an effective black colour-scheme.