It seems very pro, for me.
Musically it is very good.
As for sound - maybe one thing may be "improved" - dynamic range.
So, multiband compression of whole mix might brighten the sound as a fair dose of saturation.
Compressing staccattos will helps too - not "tail" compression(!) but only to bring up the transients.
Also, I would put little more reverb on strings, esp. on violins:
at 0:44 - dryness of violins is unveiled
(also, a very little machine gun effect is exist in this part).