Really good stuff. Starting with the composition itself, it sounds solid and it with a big ensemble this would sound really professional. I like the way you used the harmonic progressions, you really took advantage of that and the magical and dark feeling was done perfectly. The overall sound remind me of the main theme from fable, but of course in a more delicate way.

Now I am not sure if this is a sample library or real players, if what I am hearing is a mock-up then awesome sound that you deliver and if you used real players then more amazing because nothing can beat a real performance. The only thing that I think you could have worked more with is the reverb. It sounds too light and too small for the sound that you can extract from this one. Try to get more depth on the bass frequencies and give more room to the reverb. This will create this giant but delicate and dark atmosphere.
Awesome work,you really surprised me and sorry for my English.

Excellent. Make an extended version!

This is great, the only thing I can pick out that is remotely bad about this is that it is too short, that is the only reason why you did not get a five. Amazing job none the less.