In addition to what's been said, I'd like to offer an observation.
In your picture, where you're making a comparison - your son on the left and a mature professional on the right, keep in mind that your son has a lot of maturity yet to be developed, both physically and mentally. His physique and muscle structure will come a long way in a very short time ... say in the next two or three years. He'll more than likely put on some muscle and weight that'll require readdressing everything that you're trying to address now, in addition to surge in strength and aggressiveness.
I'm guessing that the picture posted is just to show what your narration is doing in words. So, that's a good thing. Just be mindful that your boy still has a lot of growing to do. Otherwise, he looks good from what I can see here.
Those that have responded did a real nice job of trying to work with you. I would also suggest keeping in touch, and often, and let those people monitor your son's progress. He shows a lot of potential. You boy is very lucky to have a dad that shows concern for his health as well as his development. Nice job dad, very nice.