Brilliant use of the theme! And expertly executed as well, super smooth. Very much enjoyed your submission, well done.
I guess if I were to critique I'd have to mention the level design a little bit. It was tricky figuring out where to go and finding those tiny vertical cracks in already multifaceted walls was sometimes an unnecessary challenge. That would have been perfect for secrets maybe, but the main path could have had used some kind of indication, even a little bit of color would have done the trick. Things like the button on the first level opening both gates also could have had some kind of indication that it was opening the exit gate too, perhaps even a window so you could see down there.
Thanks for making this excellent little project!