Beautifully orchestrated, with a very engaging theme. I do agree with others that the theme is not really developed so much as repeated in different textures.
You build with nice drama towards the end. However, the actual ending section feels too delicate and a bit coy for the rest of the piece.
The sound could use some tweaking. The piano is mostly too loud and obscures the interplay among the other instruments.
Most impressive. Congratulations.
Cheers,
Jer