I really like the creepy atmosphere, but it needs some sounds to help bring it alive. I love the fact that you do not hold the player's hand and leave it up to them to figure out what to do.
A couple big issues I had with it, though. The water is not very apparent at first and can even be kinda hard to see later on. Also, I think the locations of the piece relative to some of the items that are supposed to help you solve the puzzle can make it kinda hard to tell what's supposed to be paired with what. I was personally unable to complete the puzzle, because there were a couple pieces that I just couldn't figure out what they should be paired with.
Overall pretty cool, though!