Overall is good but still have some structure problem.
First
-the camera view
In game, when player move to the wall to close, the camera will be blocked by the wall and player are unable to see their character
For example
In the first boss level, when player drained the water and the level's serface is lowerd, the camera is moved near the player's character, then the sink in the level are blocking the player's view.
suggestion : Make free look camera available.
Second
-optimization
My PC spec is Intel(R) Core(TM) i5-10210U CPU with on board GPU, But i can't even run this game on a stable 30 frame per sec.
suggestion : Add graphics setting