She seems so sad. I always pictured nymphs as being happy and free-spirited, which is why this is so powerful. This could easily be in National Geographic or even the New York Times (in b&w) and it would communicate so much. Well done!
I love the expression on her face. What an adorable little girl. The fancy dress against the natural background, dirt and no shoes is an interesting juxtaposition. Great lighting. Wonderful shot.