Really cool game, especially considering you made it in 48 hours! The art style, music, sound, animations, and setting were all really well implemented and made the game immersive. There was a bug with the jump sound where the jump SFX would play whenever I pressed the jump button, so even if I used up all my jumps I was still hearing that SFX. Besides that bug, the gameplay was really well done. I also didn't find it that difficult, despite what others were saying, so from my view the difficulty was great!
The use of "game over isn't the end" was also conceptually really neat and had a lot of potential for secret pathways and alternate endings, but that's for games with more time. I'd prefer it to be implemented differently because I didn't like having to die after I died to progress (since the room would reset if I died after opening up the path), but if that was your intention then I can't complain much, I just found it tedious after a while.
Overall, cool use of theme, great gameplay, and beautiful environment. Nice job!