[V.V.V.V.V.]

You need to tune up your drums.

For the next riff, it should be an octave up maybe, or put in a key change?

Here's a couple goregrind tracks I made (last night and this morning respectively; these take SURPRISINGLY long because the drum programming is intensely involved...):

Rupture - Exposing The Seared Decay
Rupture - Sacrococcygeal Ligament