Don't rate your own work.
This isn't very good. All of the low frequencies are distorting a little and they just sounds like random noise.
I can tell what type of atmosphere you're going for but I think you need add effects like panning and reeverb on some of the sounds.
Also, what's with that very long silence after around 2:20?
Oh, and don't rate your own work! It only makes other people vote it lower.