Here are my thoughts from listening to it:
Opening is good
Very nice at 0:42, I like the strings
Perhaps a bit more contrast at 1:15ish, the instruments blend together a little too much for my liking. This is probably simply samples letting you down.
After listening for the fourth time I can hear what you're going for and while blending isn't so much of an issue it definitely seems like it's missing some strength.
Nice oboe at 1:44, I like the backing as well.
The section at 2:08 seems to lack punch for being what you built up to, but the section at 2:30ish is better in that regard.
Ending is pretty good, but fadeouts are a pet peeve of mine. It really sounds like it wants to finish on a low, mellow chord.
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So far I love the orchestration and structure of the piece, Despite being 3 minutes it doesn't feel short and doesn't get repetitive, even after listening multiple times in a row. I agree with Argie about the mixing in places.
The samples are a mixed bag, your upper strings are passable, low brass is a bit lacking, the oboe is great, percussion is weak in general, flute is pretty good although maybe a bit heavy on the reverb.
Hopefully that's given you a bit of insight and been helpful. I will be following this one to see what you do with it