"Sunflowers" - Mariah
I've listened to this track a few times in the last day or so, and it's a song that I like more and more each time I hear it. That's probably because of the subtleties in the track.

I love the piano line (as I usually do in songs), and I also love the subtle use of strings on the track. Those two things combined, along with Mariah's vocal, give the song a lullaby sort of feeling, which is appropriate as it's sort of a lullaby for her father's life.

Mariah's vocal is obviously delicate/emotional, and I think the backing vocals were well-done. They aren't overbearing at all and serve as a good complement to the lead vocal (I especially love the counterpoint of "me" and "high" at the end).

Maybe you were all faster than me
We gave each other up so easily
These silly little wounds will never mend
I feel so far from where I've been