I LOVE the lighting on the child, however the uneven background is pulling this image down. Perhaps have a even exposure on the background with dodging and burning the highlights and shadows to get the effect you like. You could also D&B the foreground to give it a custom contrast to your liking. Just my 2 cents..
Overall great image! Even with the background it still is very impacting. Just a thought, maybe next time get as close to the ground you can and get the background the upper part of the background behind him, then the background is not as distracting and the child is on the same level as the camera and more pulling for the viewer.