#1
I was fiddling around with syncopation, and came up with this thing. (Rhythmic study 1 on my mp3 player).
It has some Steve Reich style rhythmic phase shifting in the djent riffs (particularly the 2nd one) and the black metal part just sounds cool.
It's building to a Kamelot-esque chorus that I haven't written yet. Sorry about teh shitty midi quality.

I would love some constructive criticism!
#2
You should work on the first 30 seconds a little more, but the rest sounds great.