Mine is a drawing, and it is a picture of me. (it was based on a photograph of me, that I have a copy of here somewhere..) I asked if it was okay, it was brought up for discussion, and put up *shrug*. The other two sketches that I know of, are also pictures of the authors. And honestly? Our three drawings are a lot more clearly depicting of our actual "appearance" than some of the photos that have been approved. So, I guess I'm no help - lol, because I don't know what the criteria is.