If its something you're going to try, I'd say you've taught yourself quite a lot and have the ability to draw in a style that would conform with Disney (or any children's books).
And I'm still improving. My next piece I'll be combining oil paint with colored pencil, or I'll experiment with it first. for the sake of the fine detail that pencils can produce.
I do have some bit of news. Nothing revolutionary but still news, nonetheless. My Uncle Billy knows a Disney artist who does murals for the park. He's been trying to get in touch with this guy for the past few months concerning my talents... its old news, but I'm starting to check in on it more often due to my raised desire to work for such a major media corporation.
I would love to work for Disney, whether it be in the park, or the studio, and as long as I can contribute my talents.
It would sure as hell beat factory work.
And I will keep everyone updated
also, more artwork to come, working on a rough sketch as we speak, may have something within the next two to three days. =)