I would have cropped out the right side of the picture not exposing the chair at all or very little of it. Centering the composition takes a lot more away then it gives I find. Using the rule of thirds would have made this a better shot in my opinion. Nice colors and clarity. <7>
I think it would have been better if you had more space on the left side of the boy than the right side. Or even better, crop the space on the right side of the picture.
Nice focus and color. I think a tighter crop would of improved this some. Removing the chair and including his full right hand. It's a nice entry good luck.
I really like this one. The expression was captured perfectly. My only constructive critisim is that I would have cropped in more from the right so the boy fills the whole frame; I might even go as far as making the right edge even with the back of his neck - It put's his eyes at that magical 3rds point and really focuse the attention to his face.