There's one key piece of advice in that book, and it's simply draw what you see, not what you know. I consider myself devoid of any drawing talent, and yet I co

There's one key piece of advice in that book, and it's simply draw what you see, not what you know. I consider myself devoid of any drawing talent, and yet I could produce pretty decent copies with relatively little practice. Also, if you take it as a hobby, rather than thinking about it in terms of RoI, it might work out better. Good luck, in any case.