Some criticism: Seems like the mouth area is kind of hanging or drooping; like the mouth and nose area or the area below the eyes is relatively disproportionate. I can imagine that she would look better/prettier if the area below the eyes weren't so long and if the lips were narrower towards the edges.
What you may have done is overlooked the angle of the head (leaning forwards), and treated the back of the top of the head as the top of the front of the head (as though the head were not leaning forward). I'm under the impression that a proportionate head irl is about as long above the eyes as below the eyes?
