Immediately to the right of that golden tree with the fetching black hat is a fifth edit. I don't see the sixth, even boosting the gamma on my monitor. My guess on that is that it was a light surrounded by a fairly large patch of black, so the edges were better hidden after the clone. I don't see any obviously repeating patches of noise, either.

I can see very faint blurs that look like "/" in the sky, which I'm guessing were the stars, but I wouldn't have noticed them if Doug hadn't suggested looking for them.