Remember a face is never perfect, that's why i care about how the tones blur. (I don't want to loose the grain of the skin). However, the chin needs some cleanup.

As for the hair highlights, they need to be tuned like you did, but i won't go as far as you did just because she has dark hair, and too much highlights would mean she's blond.

In its context (the photograph), the subject is placed in front of a foliage background, and sunbeams are coming from the top and i guess from the front, that's why there's that large area of light on her cloth, and there you're right : it needs to be blurred a little up (especially the sleeve)

Thank you guy, the critique is interesting