Really enjoyed the puzzles that this game was able to creat. That last one was a bit of a brain teaser too.
For specific mechanics, I felt the movement was a bit slow. I'd love to be more active as the player needing to change inputs more frequently. I also think if the gravity was velocity based and not acceleration it would feel a bit better. I often found I knew what to do for the puzzle but had trouble hitting the green potion due to the speed I fall at.
Overall enjoyed the game a lot! Good job!