I love the rhythm because of big it is, it really sets a theme of power. As to the bass, I did not immediately think retro, but of some post 2000 techno and electronic I like. I REALLY like it.
Not a big fan of the brass, I wish it wasn't there. While that constant sound is a theme of the starsector soundtrack, it's not something I prefer, since it takes away from the pop of the other sections coming and going. :-\The horns and strings didn't seem that great to me, appropriate but unoriginal. Don't get me wrong, it's well done!
I thought the rhythm fx added to the feel of the bass/rhythm/rhythm fx trio well. All in all, listening to it all together, I thought it was appropriate and great. Just my unprofessional impressions for you to consider Stain. With respect man, keep up the good work!