I feel like there isn't enough 2nd Violin/Viola. The high notes and the low ones contrast well, but the mid range (like A4-A5 range) for the strings don't seem to exist. This might have to do with the Panning of the overall track, which I've noted, is exactly like a real orchestra would be set up. However, what I'm getting right now is not really a blend, but more of a high left ear and a low right ear.

Brass/Woodwinds (In all the orchestras I've played in) are right in the center, behind the strings. Try not to Pan these too much.

(Also, maybe a little extra reverb for the effect of a concert hall? You don't have to if you like the atmosphere of the studio though.)

With all those technicalities out of the way though, I'd say this piece is rather majestic.