I set an intention this week to do a major shapes block-in of just 2 values, shadow and light, as the underpainting. I used non-fleshtone colors for this step: a purple and a yellow. After being more or less satisfied with the arrangement, I went back over with a light and dark fleshtone, hoping not obliterate the underpainting completely and to keep an "unfinished" look. This one is a little overworked, the next one is better.