Pretty good, although I have 2 nitpicks (Note I'm not an artist)

One, the eyes are two different sizes despite being the same distance from the camera, so I would either grow the one behind the nose, or shrink the one in front of it.

And two, the horns seem to be coming out of the back of the head, despite protruding as if their at the sides, if I were to try and do something about that I would either, make then horns smaller and put them on the corners of the head with tufts of hair signifying where they're coming from, or I would put them in front of mullet hair but still behind the sideburns, that way it looks like they're actually coming from the sides.

But overall still very good.