tweeks to make:
-Slightly bigger ears... usualy they are little bigger... unless it just looks that way, cause he got no hair...
-thicker belt.
-thicker drapery in the folds on the pants.. so basicly its gota look less cylinderish then it does now and more jageddy?
what's in red would be what you should try your cell shading to get to do.. with the pants and face... mostly..
anyway, those are my comments on what could be done ..
the torso is amazing, and the face, arms everything its awsome.
Keep up the good work!