Here's a new render, with the big shading problems fixed and the nose/hair finished. I know, I know, *insert part of the face here* is too far to the left and totally ruins everything, but that can be fixed later. So could we please say this is head is good enough for the moment and move on with the project? 

Edit: Lowered the hairline, raised the nose slightly.

Edit: Lowered the hairline, raised the nose slightly.