Absolutely beautiful piece This song has a great deal of emotion incorporated into it. Every instrument is carefully placed in accordance with what you must have been feeling at the time, which creates a uniqueness that is impossible to replicate. The harp and piano work are perfect for the atmosphere you were trying to create, very water-like, very deep, and of course very emotional. It's like when you are under such pressure or sadness that your emotions overtake you, much like how water can overtake anything with subtle, almost invisible pressure.
If there is one thing that felt slightly off about the song, it had to be the high synth effect you used to emulate a water-based sound, for example at 0:49 and onwards. It's not that it is a bad sound or effect, or that it doesn't help immerse the listener, because I think it was a wise choice to use it! It just needs a little bit of equalization. That's just my opinion though...well really it's more of a preference, so it's probably just me!
I honestly don't understand how this has a 'lower' score. Deserving of much higher!
I love your style, keep it up! :D