Oh..well that, I`d say, is kind of a personal view. From what I`ve seen, a person who doesn`t have natural talent for drawing, can still learn how to draw fairly good, but he needed to work really really harder then everyone else. So my guess is that talent COULD be compensated with tons of flippin` practice and hard work (wasn`t there some such concept in Naruto??). But of course, that`s my point of view.
I wonna hear what Hawk thinks about it too.