This was groovy. I really like how spaced out the mix throughout - makes me feel as though I'm floating. Does a great job of fitting the underwater theme. Choice of instrumentation and voicings was really good - quite unique, and functions perfectly as underscore for a game. Melodies are nice and memorable without being too busy, percussion is varied and sounds great.
All in all, super solid - I enjoyed listening to this. Would have loved to have heard more in this style in truth - really dug it. Best of luck!