This was an attempt to do the thing where you draw the whole thing in greyscale and then slap colour on at the end. It was supposed to make it easier to focus on shadows and texture and all that. But after investing however much effort, I found right at the end that Krita’s idea of how the ‘colour’ blending mode should operate was at extreme odds with common sense. I managed to rescue it in the end, but the ultimate result is that there’s no variation in colour beyond shade.

That’s what experimentation is for but …