This is in the order that I encountered these issues and I do apologize in advance that this may seem mean.
- The speed of the game feels stuttery and slow. Could be an optimization thing.
- The character movement audio gets exhausting to listen to.
- (minor) should have pick-ups just get added to your inventory, have a little chime play that it has happened, and have a box show that shows it's been picked up. (this point can be disregarded completely)
- widdershins?
- the target is really tiny. it is super easy to over or undershoot it
- The color glass puzzle throws another mechanic at the player before having them get used to the wall mechanic in general. I say add mixing colors after the first glass puzzle then "removing" colors in another puzzle before giving them the two glass puzzles.