The bassline is very catchy, simple, and enjoyable! I feel as though you captured the underwater vibe well, especially since you focused more on the deep end. I only wish that the panflute was a little more subtle, because it began to take away from the deepness in my opinion. 

The bassline is without a question the best part of the song. It is so punchy and catchy.

I also really like the low ambiance noise. It really adds to the entire song.