My review, your song.

The delay on your octave jumping arpegio in the opening bit makes it hit some second notes thats dissonant. Either make the note jumps greater then 2nds to avoid the delay from spilling over, or shorten the feedback time on the delay.

Weird sample, doesn't really fit the nature of the song frankly, but its high quality and cut to fit, so I won't harp on that too much.

Your FX use is I think a little bit excessive, that watery drop down synth sound would be better if used like 1/5th as much. It gets repetitive and loses its effectiveness. Perhaps keep it at a few spots within the song where the progressions change. Otherwise replace it with a ride or open hihat or something.

Introduce some more kick and snare rolls, it will help define the sections of the song more.

0:53 soft section changes key, not sure how well it fits in with the earlier stuff. The piano bit is a nice addition. For the sake of filling up your mix, I'd suggest playing with chorus effects or a stereoized flange on your piano.

1:56 the note the nwe synth hits is dissonant with the rest of the writing.

2:11 bass is also not matching the key signature established by the piano/strings. Dupicating the channels at those sections and shfiting the dissonant note up or down a bit and oing by ear should be an easy enough fix.

End of your song, let it fade out before cutting to loop.