Mark Behm's Digital Painting Process - Video

Mark Behm has a fantastic step by step of his process over at Mark's Sketchblog.

I love his approach of starting with a silhouette, doing everything in black and white, painting in the light, constantly flipping it to maintain proportions, using clipping masks and then flattening, and making a color comp and then sampling from that. It goes a bit fast, so I had to watch it a few times, but I like how it wasn't 13 minutes as originally intended.