Well, if you want a drawing uploaded, you'll have to scan it onto your computer. Once you do that, create a gallery. This can apply for both renders and drawings of any kind. To create a gallery, click on "Send to the Site" which is at the top user bar, and click on "Send Fanart/ Send Images". Then follow the directions from that point on.

Draw or render.
Drawing of course, is drawing. But you can only render from a Balto image for it to be accepted now I think...