Tiger Mate, I see now that your rudder is exactly as the one in the drawing and, for that matter, the photo. I'm looking at your picture on a small Asus with not much resolution, and thought that you had given the rudder a balancing horn, sort of, at the top, not unlike the Valetta shown in your drawing. But with the prompt of the correct drawing, I see that it's absolutely correct.
I am sorry to have worried you unnecessarily!