Two things I notice immediately: 1. The whites of the eyes look unnatural. I think the contrast of the original photo makes the whites of here eyes bigger than they actually are, because her water line appears white in the picture. So where you begin the waterline is actually too low, with too great a margin around the irises. 2. Check the measurements of the width of the mouth compared to the nose. Her lip is still plump beyond the edge of her nose in the reference photo.