That guy's looks like acrylic or tempura, maybe even heavy water color. I use acrylic, but would love to try oil with this, it's too expensive for me. I tried this gel stuff and it gave an impasto effect, gave dirt better definition. My last one was less than half the size Mitchy's will be, can't imagine that kind of patience! I can't figure out how to post photo in mobile either. This guy has the proportions real good!