Very neat soundtrack! Good usage of repetition to catch the ears of the listener, even though it might be a bit more noticeable on the last track. While the first track seemed a bit of a soft intro, I can't say the same for the rest of the OST. I'm torn between loving both We Go Deeper and Fifty Feet Below the Surface, I can't exactly pick - both are very, very charming, and they flow into each other so well. Good job!