Drawing is mostly a trained skill. People highly over-estimate the actual innate talent needed. They just need to work for it to get results. Of course if you don't enjoy it, you will not most likely be able to learn. The trick is to enjoy it.
I couldn't find the link but there was this middle-aged guy who was only able to draw stick figures and then got some training and now has an art studio and is a renowned painter.
I think it was actually a forum thread where the guy publicly showed his learning by posting a lot of his pictures as he kept practicing. Don't have the link off the top of my head though.
Many programmers have been unable to produce masterpieces, due to the lack of ability to produce any of the required graphics / sprites.
Notch was just adhoc drawing animated sprites and they looked great.