man.. i keep staring at the head trying to figure out whats turning me off about it... its hard to tell without a flat to look at because of the pose.. but i would try pull the hair line down raise the ears, lower the face and pull the mouth down away from the face a little bit. or maybe just lower the mouth, right now its in the middle of the sphere level with his ears. which gives him a huge neck
-- go to a mirror and try to make your mouth level with your ears in real life. :P