Really like what sounds like a whale constantly looping in the background to bring you back to the idea that you are underwater. Lighting was really good as well as how they guide you through the catacomb area. The idea that every fail option that could soft lock the player would just bring them back to the starting hatch. Like the idea that the fail option kicks you back out into the open ocean so you just re-enter through the same path is really nice. Issue I found was the right side of the cathedral starting area is missing a collision box or just a window plane? The player could walk out to the ocean there and slip underneath the level. Other than that the walking sim looks very good.