I like the concept behind this image. It would have had much more impact if the background was all out of focus. A viewer's eye will go to the lightest or darkest part of an image first. In this case it is the sky in the background. I would suggest that if you try to shoot something like this again, then I would not put any sky in the image. I would try and position myself so that there was no sky, only an OOF background of trees or something similar.