My review, your song.
Opens on a nice pad, bit white noisy (I guess like waves/ocean as the title suggests).
0:40 same thing continues.
0:50 major key happyness / same thing continues.
1:37 I'm hearing crackling thats not white noise. Unsure if its the song, it seems to play unevenly. I checked my audio ouputs and whatnot, and music I play from FL, or WMP is crackless. I'm assuming the mix might be making my headphones play something funny, but it may just be an issue on my side.
2:00-ish drum comes in a bit and leaves a bit before 2:40. It should have lasted longer frankly.
5:15 and on, just water noise.
To summarise my feelings;
The water was ok in the intro, good for the solo outro. While ambient music is flowy and generally more simple then that of other music, you should include a bassline that too plays a simple slow rythm, even if its stretched over the course of several bars of music. Keep it non-obstructive of course.
This song was a series of chords of synth strings all playing together on beat. Accompaniment would have made this go from a generic ambient piece to a nicely syncopated composition boasting both smooth easy listening, and well written music. Something like a flute I think would work.
Needs some filling out, and drop the ocean sound midway through when you have more instruments playing the rest of the song.
3/5 7/10