As I listen...
Listening this as I write, so here it goes.
Good start. I like starting with instruments better than drums and this reflects it.
You need a more heavy snare, it's too weak.
Seems like at 1:40-ish you went for a music break, but I would have loved to hear some more nitty gritty breakbeat you had there before you break. Also, I think the break was too long.
More drums overall now that they're back in. I can hardly hear them.
You need some more moving lines like at 3:15-ish. Just having chords is sort of boring to me after you had a drum break.
Once again, you need a lot more drums.
A crash symbol would be nice when you change sections.
Towards the end (4:45-ish) That main melody needs to come out since it is the moving line. Your chords are covering everything up.
That last lick of melody at the end would have been great during a drum break, since it stands alone pretty well. Also, it would be good for a climax having all the parts together at the end.
Thanks for the review! Ill take this into consideration in my next pieces, or if I decide to remix/edit this piece (=