Excellent work. You've achieved a good orchestral balance with these resources. Well done with the orchestration. Did you prepare it in a daw or with a notation program? Sure, orchestration is a daunting study but there are plenty of scores about of this size for you to study.
What I particularly liked was your frequent use of antiphony, most noticeable in the trio. What you've done is quite subtle. The changes between wind and strings aren't obtrusive probably because you keep them in roughly the same registers. And just to say it, you seem to have a good command of pre-chromatic CPP.
I see no problem with using two Cor Anglais. Their mellow but thinner tone emerges in the higher register. Given a choice with just one upper double-reed instrument, I go with the C A.
Altogether good.