These are some riffs that I just came up with. All but the first riff are really just different iterations of the one idea. I probably won't use all of them, or at least all in a row, but I really dig them, especially the way I set up the harmonies. Like how it shifts from up a 6th, to up a 5th throughout. None of it is really complex or technical, it just all stems off of this weird vibe I was feeling. Let me know if you think any of the riffs are decent.

As always, give me something to critique. I'm always more than happy to return the favor.
Barren Plains.gp5
It's a decent metalcore thing you've got going on. I think it's very monotonous though. Even with a full band, I think people would get bored listening.