It looks good, I like the colors and the overall mood of the head. Not sure if the latest pictures are still WIPs but it's very rough in many points and it could be improved. I know you want that hair style but all those Microsoft Paint pixels don't match the rest of the head. You could try to go with the same "rough" style while making it seem more fitting.
Ear anatomy is weird, it seems like you put shadows a bit randomly and the upper part of the face (eyes and nose) could be improved with better shading since everything is uniformly dark up there.