I am very happy you enjoyed my game!
You described the graphics way better than I could have. I was thinking about it when testing... I was sure I didn't recreate the Mona Lisa (I'm not an artist, just take a look at the game's cover image... maybe a reason it's not so popular :P), but yeah, I'm glad it turned out that way, "readable". :D
And yeah, a few levels have multiple, very different solutions. For instance, in the last (well, second to last) level of the game you can jump over the final button and just go through the portal. The long hallway with the spike is a bit random, though, haha.
Thanks a lot for checking it out!