^^What he said!^^ There's a lot to like about this, but also I feel a few fundamental problems. The lighting is decent, 'though her face appears slightly under-exposed. Fill light is your friend, and a simple reflector would have really made a difference here. Your choice of lens is good, but your shooting aspect, maybe not ideal. As mentioned, because of her pose and your relative position, you've made it appear as if her head is about 1/3 larger than it really is. Unless you're deliberately wanting to put the subject into a subservient position, shooting at their eye level is generally considered the best choice. All of that said, I think a reshoot (or several) is in order!