Steve,
There are two things I obsess over: Finding the right EQ for an instrument, then ducking the right instrument(s) when I want to hear more or less of certain voices. I'm fairly guilty of only focusing on these two things most of the time, lol. It's hard to tell without actually looking at everything myself. My ears want tot ell me it's a 'too much mid-low range in most instruments overall' and that it's simply a matter of eq'ing it. I could be wrong. I'd be interested to know how you have things generally setup. Are you using your own eq settings? what EQ? Vienna Suite presets, etc?
What I do:
I don't really care for VSL's eq so I use a number of others. I actually like a fairly cheep EQ called IIEQPro. I'm probably crazy, but I like it. anyway, what I do:
George Yohng's W1 Limiter. Free and decent, imo. Yay!
Some tape saturation, warmth plugins, etc. (this is not as often, and subtle anyway)
I duck when I feel is necessary as said before.
I use different instruments. Now that I own some non-VSL stuff I'm very happy. I love VSL. But sometimes having a mixture of libraries is the best way to get more depth to the sound. I'm actually preferring recording to sampling now anyway, despite almost no opportunities to. I've even started sampling a few instruments myself, both as a playable sampled instrument and just recordings to use, etc. Having the variety helps a lot. Granted, that mostly helps with the performance, not so much the sound. But I threw it in there cause all this sums up pretty much everything I do for the sound I'm happy with.
Back to you now:
Please don't take this as sounding too critical. I'm only wording it the way I know how. I keep listening to "The Abduction" from 26-38 seconds. The music is great, but it sounds a bit like the 'wall of sound' principle, but without anything on top of it. It's all kind of 'just wall-ish' to me. Personally I keep wanting the violins, cellos, horns, and trumpets brought out more to be more distinct, etc. Unless it's an eq thing, I'm not sure without looking at it.
Hopefully that helps. If not, I'm sorry.
-Sean
P.S. Again, the music is great. :)