Hi! Welcome to the Forum first of all! Now on to your piece

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Erm...first of all, a Requiem is a very solemn and strict musical form that involves a full orchestra, choir, and latin religious text. This is by no means a requiem. Requiems are also sometimes 2 HOURS in length, not 2 minutes. They consist of numerous emotional movements. This consists of one, very short one. If you really want to call this a requiem, you could nickname it something. Perhaps try calling it: Trio for Wind No. 1 ('Winter Requiem').
For starters, I think this piece really did resemble the winter. It painted the picture of blowing winds, and hoarse snow on the night road...kinda nice, but...this piece is extremely random. It goes pretty much nowhere, there is not developmental material, and your harmony is WHACK. The places where you need a nice chord the most, you have some solo oboe line, or something of that nature. The places you do have all the instruments playing it sounds like you punched some different melodies in on all the parts and just put 'em together hoping they would sound good....they didn't

. I understand this has no form, which is fine, but i think you could use some development. Perhaps some variation on your introductory motif would be nice?
Good luck!
~Nico