I just listened to all four tracks for the first time. I think they work just fine as a cohesive unit, the tones, tempo and riffs all seem like they came from the same band at the same time.
I'm hard pressed to pick a favorite or a weak spot, which is good. I really like all of the tracks, some of it reminds me of Doomriders, some of it Wolverine Blues-era Entombed. I'd definitely listen to this band.
That being said, there's a big missing piece that could have a huge impact on the final product and that's vocals. I kept hearing LG Petrov in my head singing over the track, so I guess that's the initial vibe I was getting, but I think a singer that could straddle the line between harsh screaming and melodic singing would really tie the whole project together. Again, Nate Newton of Doomriders/Converge comes to mind.
Musically the tracks didn't feel like a whole lot was missing. I think occasional double bass would be cool, I think there's a spot in the last track where it could be used to good effect. I liked the little bit of guitar harmonies/melodic lines that I heard in the first or second track. I think more of that, and/or a second guitar track playing weird noise/melodic stuff like Torche was doing for a while would add some interesting atmosphere.
There's a few parts with big, open chords. Those spots might be good places for effects and/or samples. I liked the use of feedback, reminded me of Cavity, which is always a plus.
Anyway, that's what I would do, it's easy to be an armchair composer, much more difficult to pull it off by yourself. So kudos to you, man. The tracks sound really killer and I think it's a really solid base for a first EP/demo type thing.
Hope that helps.