Very nice, and I love all the details (I never have that much patience!)
As for
1: The facial features don't look too big to me, but her head looks a bit too large compared to her neck and body. It may just be that she has big hair, though.
2: The biggest problem I see with the hair is that it's inconsistent. The half closer to us is fanned almost 180 degrees. While this is possible with sharp movement, the back side of her hair is going straight down. It should really be swinging out as much as the front portion.