Well, it’s actually complicated. At early age I was exposed to literature. But what I was in contact with more was actually cartoons and comics. For starter, I was a kid, so visual presentation was much easier to digest. And beside, I just had that ability to pick up things in those things, from story telling to art. You can say my ability to draw was largely developed from this phase.
And one point I read a lot of books, in part of an attempt to improve my English. I had a chance to access to several books from classic to contemporary. Literature became the second influence.
Then I started to have less time, and literature started to lose its influence. I began to look for a different form of entertainment that fitted my time limit. And that was when I found movies. Now movies are the ones that play the major role.
So, currently I think I can rank movies as the first, then painting if you count comics as a kind of painting, the literature. Music doesn’t have that much role as far as I remember.