That was a really nice, chill puzzle game. Great job. Loved the visuals, art and music. The idea itself I think is very creative and I loved it. There were a small visual/processing bugs between transitions but those are minor and don't take away anything from the game.
On a more constructive feedback:
1. Some objects are a little bit out of place. For example, crystals or objects on floor and wall feel like more detailed and they stand out. Maybe that was intentional decision.
2. Sometimes it was hard to get into "another item". Maybe some highlight could do the trick, especially when you can jump far enough. If you will miss the jump then there won't be any highlight. This should improve UX.