Your game has really come far! Aesthetics wise, its definitely developing the vibe I think your going for - you really do feel like you are underwater, and the subtle animations add a lot. I think trying to implement some way of explaining the controls when the game opens up would be a bit helpful, because I died a few times before realizing I could look up the controls from the pause menu. The world also feels a bit empty, but I imagine that's going to change in the future. I'm excited to see where this goes!