I like the synths at the beginning and the filtering effects that create a mini-climax into :07. The piece was a little slow to develop, but the stop-starts at :30 ruined the flow for me a bit. I would suggest adding some reverb to smooth it over a bit there. It sounded like the piece was building towards something around the 1-minute mark, but you didn't exactly release the tension. I like the tempo automation at around 1:30. I was craving some more melodic content by around the 2-minute mark, but it never really came. It seems like you have a couple of cycles in this piece where you skip right over a drop/refrain and go from a build-up to a breakdown immediately. I think the structure would be a lot more effective with an emotional height in there somewhere. Your build-ups are also fairly drawn out, especially the one from around 3:10 - 4:30. It's just a little excessive, and once again only leads to a chill chordal section. This piece is very long and has a lot of tension that never quite resolves. I like the style of this piece, but I think you should think more about the composition next time; cycles of tension and release are really effective in music, but you need some more release for it to work here. I also thought the piano at the end sounded really fake, and the ending itself wasn't that conclusive. Sorry to be so harsh on you, though. It's a bit of an experimental piece, but it certainly conveys some neat moods and has a cool unpolished aesthetic. Keep at it, man! ;)