The challenge was to fill the frame with the subject ... the little girl IS the subject and more than fills the frame ... I do not see any background ... I have NO idea why you would DNMC this photo.
I agree with the others though ... with the hand cropped out it would have been super. Not because only a face without a hand or anything like that should be in a fill the frame challenge ... but because it is forshortened and bright.
I also agree that the brightness overall could have been pulled back a bit ... but the EYES are out of this world! ... fashion magazine quality! ... well basically everything in this image is super and honest from the chin line up. That is my opinion.
Edit: Sorry ... wanted to add ... except the brightness (as I mentioned above could have been pulled back a bit)
Very nice shot. However, the hand is very distracting being so large and out of focus. I think I would have like your shot a lot better if you'd have cropped the hand out and concentrated on the pretty little face and the bright eyes alone. Nice job.
Very nice eyes...and you filled the frame appropriately. But it lacks a professional look...if I can say that. It just lacks the expertness that DPC seems to attract. Look up how to do a diffusion on this picture, or a soft focus. Plus, she has a lot of distracting hair and dark circles under her eyes. I think the hand in the foreground is a quite a bit distracting as well!