Another good shot, that abstracts the subject to make it a universal image, don't need to know who, what (or even why!). The composition is perfect; to pick up on a comment I made on another of you pics, having the child centred is crucial to the 'own world' idea (as is, I would suggest, having the back to you, no suggestion of child being aware of photographer). To put the subject off-centre woul be composition for composition's sake, antithetical to the point of the picture.