I made these a while ago when playing with Sculptris, and thought I might as well post them. They’re basically experiments in painting with matcaps as brushes: it turns out those can look quite painterly when blended together.
Three versions of some sort of polyp from a Lovecraftian fantasia (same mesh, differently painted):
This one ended up as Prometheus, or maybe a heliotheistic C-3PO. (The marks on the arms are a mistake which I decided to leave alone because they add a bit of visual interest.)