This is vey good. I think you outdone yourself compared to your prev PD submissions (this is intended to be a compliment ). You got the skin pretty well nailed down; perhaps adding more shades/contrast to the hair and horn (i.e. to have the same contrast level in a single picture) would help.
Woo, thank you! ^_^ I've been thinking about working on this a bit more, adding harsher lighting and stuff. It doesn't stand out like I'd like it to. I'll have to work on his horns and hair. :3