Not a bad idea and I really like the composition, but the bright spot from the sun on her forehead is blown out and draws the eye and the face is a bit soft. It looks like the camera may have focused on her ear and hair. The tree branch is also a bit of a distraction, though obviously in this case cropping would have ruined the composition and with basic editing you couldn't clone it out.
Back to comment. The concept of your entry is an interesting take on the challenge topic. This image has a few technical issues that I think are going to hurt your score. First, the uneven light on the girl is very unflattering. You could have used a fill flash (Something I seldom remember to do myself) or a reflector to help fill in the shadows. Second, the background doesn't really convey the theme of your title. It is very busy and a little harsh looking. I've just started to look at the background of my images before I shoot as much as I do the main subject. Even so, I still get images that become very average looking because of the background. You had a good idea and just need a little work to make it happen.