I like the fact that she has a nice amount of light exposing her and the fact that her hand has shadow on her face and neck. I dislike the fact her hand is in the air and that it's not actually doing anything.
This photo represents value. In this photo you can see the highlights where the sun is shining on her and the shadows where it doesn't. The darker areas show more depth than the highlighted ones. (photo by Sarah Loven ) Idea of using shadows