This piece has the right amount of energy, not too much to be overly aggressive about it, but there's also this sense of tranquil beauty that seems perfectly evocative of an outer space scene. I can just feel the heat resonating off this sound design and there's a big "above and beyond" atmosphere that I really like.
The part that I wasn't so hot about (no pun intended - okay maybe pun intended :P) was around the beginning section. At the 1:30 mark, I felt like keeping that bass was almost too protruding, but I do see that it leads into the 1:56 section really well. Perhaps if they were a bit more in the background.
I actually think the piece gets so much better as it goes along. Like the section at 2:21 where everything gets quieter and starts rising up. The arps are lovely here, and the counterpoint with that off-beat instrument that almost sounds like it has vocal qualities works so well, especially when the rest of the accompaniment starts kicking back in.
Despite not really being into the first...quarter of the piece(?), I truly enjoyed the rest of it, and overall felt it captured just the right amount of energy necessary for this instance you were trying to convey.