I just didn't like how small and wide the mouth/ teeth are. Also, I dislike the two lback streaks on the right eye. Otherwise, good job, Its really well detailed. 7/10
I like the hair nad wrinkles, but everything else is kinda... strange
the teeth are really croppy. imo, they should be bigger
also, why is the nose just two dots? :S
Horns could be more 3d-ish. Try to shade them a bit stronger.
7/10
Um, as for the nose, try moving the nostrils down, then as more shading for some depth effect. Oh, and I just noticed the back of the hair has a shift line.
Teeth.
Pretty much all the problems are on the teeth.
1, it looks like paper.
2, it's all white, I'm pretty sure demons don't go to the dentist.
3, well, not much else, but just the teeth.
Good job though, WORK ON TEETH.