The problem is that you also have a very dark shadow behind the head. it would probably be simplest to do the best you can with refine edge, then you may need to draw back some of the flyaway hairs by hand to get a realistic result. If you google for "sarsa's hair brushes", those are excellent for this sort of thing. Just load them into PSE, sample the hair color and paint with one.
EDIT Here's a direct link to the sarsa brushes:
North America
Europe, Middle East and Africa
Asia Pacific