This underpainting was actually due Monday, but I didn't make a blog post because I wasn't really happy with the way it looked. Nothing wrong with it, but it wasn't working conceptually. This fictional culture is one obsessed with math and logical reason, and at the stage the underpainting was there wasn't enough architecture and repetition that represented that. I also have this really bad habit of painting in coral, ornage, and purple.
So, a lot of Shift+drag with the Brush tool and one Gradient Map later, something I don't feel as ashamed to put up. It still has a long way to go.