hmm i think i may have prefered him with shorter stocky legs they seem a lil stretched but if u were to keep it this way i think his chest looks outta proportion now, as to b4 when he was stocky it looked right. take a look i think u will notice.
As for lighting u will need to get some colour on him really b4 u try lighting and renders on him cause if u get it right b4 then it will all change once u colour him. So get that done 1st pal. Good luck.