Below are the paper mock-ups of our three levels:
Below are the complete three level designs done in Photoshop. The levels were done in segments, so the combined images aren't that clear because I had to scale it down since the files were really large initially.
Level 3 Revised (Level 1 and Level 3 were combined later on during our design phase in order to make Level 1 longer for the final prototype; but the change was not made in our prototype):
I've attached the zip files of the 4 levels with the more detailed images below: