Timaeus,
That opening brass sound is drenched in ValhallaVintageVerb already. I mean I can put more on it. The issue I think is that you're not hearing a lot of HF information in the reverb, which is completely intentional because I find too much HF in the reverb can be as bad as excessive HF distortion.
I realize that the arp is clashing with the pad & brass sound harmonically. I'm not sure if I want to keep it the way it is, fix it, or make the clashing lesser but almost more sinister like.
I do like the idea of fading the kick back in during the second half of the track, but I think it might be more interesting to shelf the low end back in with just a tiny bit of volume fading. That could actually be pretty interesting.
You are right that the opening isn't elaborate. Really overall the track isn't elaborate at all, and it really isn't meant to be. The thing I'm having problems with is finding which instruments that I can add that keep it sparse yet full at the same time because I want it to seem that it is sparse & is not elaborate. That is the real tricky thing to do. I mean I could go ahead and throw in another dozen or more layers to the sound no problem, but then it would turn into this dense thing that doesn't do anything interesting. I'm honestly starting to think at this point that I need to start thinking about little background FX details, as I have none right now. And I really need to change up the bass sound the more I listen to it. You say deep analog bass, huh? Hmmm, I might be able to do something with that. More things for me to consider.