This is a nice good quality photo. I think it had the potential to be a great shot. Rule of 2/3 is nice tones are great. It could have been better had he been looking somewhere besides into the camera, and if the camera had been in the frame of the shot. If he had been looking elsewhere it would have given the idea that he was studying something that he was going to take a picture of himself. Minor annoyance, his sleeve is turned up. All that said, I still think this will be in the cream that rises to the top. Good luck.
I think the post procesing was s=pushed to much. The skin looks too smooth and there are obvious sharpening halos. I'm just nit-picking with the halos though.
Cute kid. Very good lighting -- leaves the areas on the face nicely exposed and allows the shadows which looks really good and are not too harsh. good job.