Nice. Great performances. Solid mix. Any crits are subjective so take with a grain of salt.
After noticing what a nice voice she has, I thought she sounded really full in the lower tones of her voice. At the same time I noticed the piano sounding a little small. Sounds like you took the piano and high-passed it (for the sake of the bass), carved some low-mids (for her vocal), and low passed it too (I dunno... for the bells?).
It all works well here in context. I might try shelving off a little low from her vocal a couple db & give it back to the piano, and personally I'd ease up on the low pass filter a bit as well. I love the high-fi sound of a piano, the bells are a nice accent but not mission critical part of the mix imho.
Merry Christmas & nice Daryl!