Nice.
The light source on the body and the head seems to be from different positions, though. The body's light seems to be coming more from the front, whereas the head's seems to be coming from the right side. Unless, of course, you're trying to have the light coming from the upper right, in which case you'd want to move the light on the body closer to the right.
The body also looks like it's in more of a 3/4's view, but the head's pretty much straight left. Maybe tilt it more to the right? I dunno.
Nice piece, though. The color's are nicely chosen. And since some of it's experimental, i'd say it's relativley good.