'That’s his tower, right? No one shall ever take it from him. Well, you could allways try...' The left wing (from the dragon’s point of view. That mean at the right side of the paper) is drawn in a different, and less good, kind of way than the right one. So, the right one is the wrong one (the right from the dragon's point of view). It wasn’t drawn the way it should. The left one is the right one. You understand what I mean? Drawn with pencil and smudged out with a rubber.