A good photo of your son. If there were anything that I would do, it would be to very subtly brighten up the eye-socket and eyeball areas. Lightroom's iris enhance is something I sometimes use, to very delicately brighten/add color to the eyes; the key is not to over-do it, like so,so many people do! I think just a little bit more post-processing "light in the eyes" would help elevate this shot. Otherwise, I'd leave the other parts of the shot as they are.