I love the progression and soft plodding atmospherics. A very nice calm, grooving song to listen to. I do think it would've been nice if the song actually progressed just a bit more though, having it open up a bit towards the end with a bit of distortion and some more layering would've really added some impact to this and kept it from getting stale towards the end.
Production was decent, though there is some audible clipping. I also don't much care for the drum samples you used, though the patterns were otherwise relatively well done.
Overall, I enjoyed this, and i'm glad to see others on Newgrounds making this sort of music with this particular vibe. Keep it up, good sir!