"Great trip-hop"
I do agree somewhat with Fissile below me, the stop is way out of place. I think an echo at that pause on one of the melodies and then frequency modulation would sound nice. You have an extremely unique sounding piece of work here, and I would like to know, how exactly did you make this? Was it made with loops or your own samples and what program did you use? I also agree with Fissile in that it is somewhat repetitive. Maybe add a breakdown, some vocal samples, and set it up so that after the stop, you change it up a bit, add a prominent bassline, drop in the vocals, and then have the main chorus come back in at the end?
Don't get me wrong, this is incredible. I want to see this all perfectly arranged so it fully becomes the song it can be.