Sick riffs bruv. I'd say everything needs to be mixed to sound a lot 'heavier' and/or 'dirtier'. This could be accomplished through compressing the living shit out of the drums and guitar, adding EQ to really bring out the guitar's high end and the bazooning bass sound of the drums, and also maybe adding a bit of reverb for some extra spice.

If you wrote this guitar riff, then well done dude, it's awesome. The drums doesn't really fit with it tho. The bass loop is more and more off synced the more the song is progressing, you should be careful with that. What software did you used to make this ?

~ Ahurac