I've added a few more scenes to https://simonthesorcererart.blogspot.com/.
I believe there are no more in the game if I'm not mistaken.

I realized the same thing a few years ago and also found it quite interesting. I agree that your theory of backgrounds being designed for scrolling may be right, especially considering how perfectly many of these screens match (you can see more here: https://simonthesorcererart.blogspot.com/ ) Fun f...