If I remember correctly, somebody who worked on the 3D models of Portal/Portal 2 said that they started doing 3D artwork because they were rubbish at drawing, but I heard from someone else quite recently that in order to be a good 3D artist, it helps to have a good understanding of 2D artist, I suppose for actual modelling purposes. Although I've done well without having any experience in 2D art, I have become increasingly interested in that side of art, and I'm seriously considering learning how to draw. I'm watching a lot of time-lapse videos and I'm hoping that I can improve on my drawing and perhaps incorporate it into the novel I mentioned I was writing a while ago. Just food for thought. One more skill can't hurt, right? Musician, 3D artist, writer, 2D artist!