I'm loving all of this, when i was listening to it, i literally spaced out and was only focusing on the music. Definitely a relaxing/chill piece. I could see vocals working with that too. It would be awesome to hear a finished version with vocals.

The only things that caught my attention was that cymbal sweep kinda thing that I heard every now and then. I think that could be a little less in your face. Maybe lower the volume a bit so it doesn't take away from the music as much.

If you could check out my song it would help a lot :)
http://www.newgrounds.com/audio/listen/627640

I really like the guitar sound. Nice and calm with a lot of ambience. The pads you use are also quite cool. I understand why you mix the guitar so low but without the vocals you want to add it sounds a bit empty at the moment. The drums are much to dominant and since there is not much variation or dynamics in the drums it sounds a bit repitative. I also would maybe use some other drum samples, maybe less synthetic ones. Or use some real drum samples and mix some synth drums below. I guess this would fit the atmosphere. I definitely like the reverses you use here and there. It is hard to say something about the mix and mastering as long it is just a work in progress with the main part (the vocals) missing. Anyway, I guess this will be a nice calm piece when it´s finished!

Nice, I like the vibe your going for! Reminds me of the cure mixed with boards of Canada. Everything's well.mixed and the arrangement was good however o think you could've added a bit more instrumentation as some sections felt empty to me. I liked all the fills you programmed with the drums but I personally would've used a different high hat. One with a bit more high end sparkle.

Nice job, I liked it :)