It's obvious that the artist took a long time to put this together, the shading is near perfect and the anatomy is pretty good for the most part.
The one eye seems tilted at an odd position, and the nose makes him appear to have small nostrils.
The hair seemed to have taken a long time, I really like the highlights and the shading on it.
Unfortunately it really looks like the artist had to put this together, the line that is across the face really takes away from the piece. It would be so much better if they could take a third picture right in between and blend the edges together with photoshop or something to rid the line.
I think the misty background seems pretty cool, I just wonder why it stops on the left side leaving a random bright spot.