It's definitely an improvement! And musicially, it's not bad at all. When I come to think of it, I find something "wrong"with your orchistration after all. At 00:10 the cornet/trumpet & euphonium/horn, plays too much legato, however, NOT legato enough. Either go all the way, or back up. I'd reckon a more normal approach would be f.i all staccato, or "short short long (breath) short" The point is just trying to eliminate the machinegun effect. The trumpet theme at 00:30 is ok, albeit I find the tenuto/legato playing to be just "almost" legato, and too much tenuto there as well. At 00:50 the main thing that tells me this is virtual, is the dynamics. There seems to be only one articulation. Have you tried blending in some shorter/longer notes? It sounds like it could use some velocity crossfading as well.
Lowering the channel fader and increasing the velocity fader, will give you a more realistic sound when playing the "loudly" as well.
When it comes to panning/mixing I suggest you listen to some real takes, and try to position your instruments accordingly. Of course you have to experiment :) And perhaps some more reverb on the instruments with lower precedence.
And remember, these are just my opinions ;)
Best regards
Fred