To be honest, I don't think it's so much a matter of talent as it is endless practice, at first with things like drawing simple shapes in perspective. You have to work your way up to drawing people well. I get the impression that it's a whole lot of Mr. Miyagi  style 'wax on, wax off' before you get to the good stuff. You might wanna check out drawabox. I already would've by now if life didn’t keep me so busy with other things.