I liked the atmosphere (I loved the bubble sounds)! The tense music when you get spotted by a shark was a good addition, and the landscape looked pretty nice. Though, the game could use more mechanics. I finished it in about 7 minutes and most of that time was just me staring into the landscape, since the only things you really do is turn left or right. Things like boosting or maybe even firing a torpedo to stun the sharks could help. Also the sharks weren't really challenging, since they were pretty slow. Overall, nice work!