Really nice vibe, for me personally the ambiance sfx were a bit too loud to clearly hear the instruments at parts, but worked great together to set the scene.
Skyrim feels are there like Reflect Null mentioned already, and I really felt that you managed to get the same great spacious/washy feel of space for the instruments that Jeremy Soule always has for his music, which I think add a lot to giving this that Skyrim feel.
Good work!