The vocal is great! I love it. I would love to know how you got such a beautiful sound, that seems distant, but still present and the note transients aren't there...it's like she's just sliding to notes but in a good way...wow.
Mix & stuff wise, I feel like the composition is a little conflicted. There's a lot going on - seems to me like there's a lot of good parts but they aren't totally in concert to lead you to the focal point...for me, I want the voice to be the focal point, but I find my ears jumping from the strings, to the voice to the horns?
Just a little too much all at once for me - but the composition is excellent.