Very cool, Danny. One thing I would caution as a general rule, you might not want to go so flesh toned on the teeth and whites of the eyes unless you know that the subject has those colors there. It dulls the overall effect, as it's one of those things that photo retouchers are told to correct -- eyes and teeth. It's especially noticeable because you have a large spot of white in the picture which sets up a comparison against that white. If it was a sepia toned pic, then I could see it fitting in with the overall spectrum you've established -- where the white in the hat would be more sepia or the teeth lighter. As to the eyes, they're not very visible, so they look light enough in context. But if you did a pretty actress or model, you would want to push the glamor.
Anyway, it's your call, but be mindful of what you do in those areas. It's especially important if you've really expanded the range of the pic by showing absolute black and/or absolute white in the pic somewhere. That sets the range that you have to then work within. And again, if the teeth fall short of absolute white, they look like they are meant to be dingy. If the eyes are less than toward the white end of the spectrum, the sitter looks jaundiced or ill.
Nice though in the other areas of concern. Likeness is very plausible though I don't know what he looks like at this age so much. But you make me believe he does because of your attention to detail.














"Not a bit is wasted and the best is yet to come. . ." -- remembered from a dream