I did a bit more work on my sprite. I still haven't done any shading, and the colors are still not set. But, I filled in the mouth and added body drills, which required me to move some stuff around.
This is turning out a lot meaner-looking than I originally intended. I'm definitely going for an angry look, but this might be a bit too much of a badass...

This is turning out a lot meaner-looking than I originally intended. I'm definitely going for an angry look, but this might be a bit too much of a badass...