grats with your first post! Nice sculpt, cool idea and some nice details going on. If I was to give some pointers to what to improve upon, I would suggest maybe taking another look at the mouth-area. The lips are very thin, and the mouth itself has that typical cg-look where it lies almost flat on the face and is somewhat too narrow as well. Try pulling out some mass in that area, and I think it would look better. Also, the placement and angle of the ear seems a little odd. The ear itself, though, looks really good.
Looking forward to seing the progress 
L