Pretty good
O.K., starting from the beginning:
I like the concept of the piano, but i think you could add a little something to make the into a little more interesting, because the wavy pulsing piano isn't really working for me by itself. my also look into melody but thats up to you.
i like the drums, maybe a little more than just the piano filling in between the drum interludes.
i like the way the pick up with the piano around :50. great synth you have going there with the piano and drums, i might suggest pulling that hat back some, because it stands out a little from the rest of the piece.
i like the synth that starts around 1:56, fits really well.
the sunth that comes in at 1:22 could use a little more flaver, seeing at it seems to be just a long seep tone.
i like the stuttering effect around 1:44 after that though, com in with a sixteenth note base and and a little more hardcore percussion, bordering on breakbeat.
once again the long deep tone that you use at the end really needs some color because it really lacks texture.
that is no kind of ending, at least have it fade out or something?
all in all, pretty good, i like the concept. expand your song, add a little more depth to it.
good luck and keep producing!