pretty cool
Some good breaks and composition you got here...
The breaks start to sound empty after the first one. Maybe a good idea to have a short sample play after the first break.
The piano, strings and bass sounded really dry, I recommend using some reverb over the piano and strings, and replace the bass with something more natural sounding, maybe drop a bass expander over it.
Also, google "Side-Chaining". Trust me, it will improve the quality of your music ALLOT!