The perspective of the face doesn't match with the body's, it looks like he's looking down, so you should raise his eyes by 1 pixel.
His legs are a bit too wide, in my opinion.
here is a quick edit, later I'll try to do some hair on him for your inspiration : )
as you can see, he looks kinda strange on a light background, because of the dark borders, (maybe you already knew) remember to choose according to what the background's gonna be (light or dark)
