I like the single tone which commences the piece, and then the little beat and little underwater effect. The rhythm works pretty well, with this, and I like that you stayed a bit spare. Glitch and click and a bit of tone can make a perfectly workable song, as you illustrate here. It’s a pleasant enough mood piece. I keep wanting a bit of subtle pitch shift or perhaps a second pitch to appear mid-song, to break up the piece a bit, though the repetition is not out of place in this kind of minimal piece. A good listen, overall, though I’d like to hear it do more and do it in less time—but that’s just opinion, and not some “one true way to do this mix”.