I think it's a really good concept for taking control away from the player, which turns the game into something very approachable and easy to understand. It's also a very solid execution visually and everything works effectively to communicate to the player what they need to do! If you wanted to go farther with this I would just focus on more sound design, music and polishing the player feedback up (maybe add some post processing effects to sell that underwater feel!) Great job on this!