I would agree with Dee, I would add there are a number off hair brushes for Photoshop out there and I've even made my own. I use this especially if I cut out hair from one image to add to another. I might use a combination of said brushes with brush settings to paint in colors not usually set at 100% or the smudge tool, also be careful with your percentages, there as well.

Also I might ask if you altered this image in PS did you use the new in PS 2015.5 face aware filter? The reason I'm asking is her eyes look a tad to large. Not that would be wrong if her eyes are large...I'd be jealous, lol. With age my eyes have gone all squinty.

I saw your original post on this and think you've come a long way on this project!

Cheers, CT

---

"Imagination is more important than knowledge" Albert Einstein