Okay, here is my critique--things I liked, and things I didn't:
Like--Good job setting a mood.
--I like your use of sleigh bells.
--Good use of woodwinds overall.
--The flute part around 2:30 is great; I like the section that follows it at 3:00 as well.
--The ending is nice; very understated, and gives it room to loop.
Dislike--There are a few wonky notes here and there.
--Between 0:54 and 2:03 doesn't do it for me. It feels like a let-down after the intense build-up of the first 54 seconds.
--I also don't think the harp is the instrument you want to use for your lead, starting at 1:36. That sounds like more of a concert piano part.
--The background harp sounds too mechanical to my ears while it's doing its arpeggios; I'd try adding a bit of variation in the velocity/timing.
--The use of modulation to increase tension at 3:27 seems a little hokey to me.
This isn't your first original piece, is it? If so, this is a fantastic place to start at! If not, well, it's still pretty good.
Hope that helped.