So... Shading problems. Under the bangs, and around the chin. Also, the shoulder pad on the left (OPV) seems to be closer in on the body than the opposite shoulder pad, and don't try to tell me it's the angle, because, the body's facing too forward for that to be just angle. I'd either move the left shoulder pad or move the right one in.
EDIT: Looked closer, the hair shape in the back-top seems kinda... bulgy. Like, the head shape underneath would be weird to cause that kind of hair. I think you should pull it in some.
EDIT2: SO, I actually zoomed in, and the "closeness" I'm seeing for the shoulderpad is just the bang coming down there, but, even if it's supposed to be there, it... Still makes the shoulder pad look too close, even though it isn't.