Hey, its definitely going great so far - very good looking model! Just a couple of small improvements I can think of....

First off, the hair. As has been said, more of this is needed anyway. But the hair you have already got could benefit from varying a little in length - at the moment it appears to have been cut by using a guillotine! And also I don't think the few bits of hair protruding outwards from the left side of her face look very natural at all. They would look much better simply hanging against her face.

Secondly, I think the general shape of the head is slightly off (most noticeable in the view from the front without hair). I don't mean the facial area though, that part seems very good. I just think that the jawline is a bit too defined/wide. Perhaps try and smooth this out a bit and make it look a bit more feminine?