Have to agree with others that the panning is a bit too drastic for some instruments, mostly with the horns and cello panned almost hard to the sides with nothing except the timpani in the middle now and then makes the track feel a bit hollow.
I think if you like the wide panning, you could try to have some instruments playing stuff in the center parts of the stereo field/orchestra too, so it doesn't start to feel too hollow.
But still, great work!