Her voice is fantastic, and the tune itself is epic. Really love it.
I agree with the folks that say the drums are not up to par, need to be given space with verb more than compression IMO. I also think that the piano level and EQ sound out of place when soloed. Maybe some added delay or reverb is needed at those moments. And the strings are very buried in the mix most of the time -- swelling the strings at moments could be very effective, although maybe staying understated is the right approach on that score.
Given the quality of the vocals, it is worth spending more time. My two bits anyway.