I really enjoyed this track, and I agree with the other commentors that the sparse track backing fit perfectly with your theme, the melody, and the feel.

But I was mostly concentrating on the singability of your lyric:

Lots of open "O" sounds in the lyric--blow, echo.know, lonliness, show, so cold---perfect choices for your mellow voice and for capturing the feel. And I love your choice of matching the first line ending ("gone") with a second line ending that is kind of a clever rhyme scheme--"lonliness", so the rhyme isn't on the last syllable, or using "echo"--emphasis on the first syllable, but the rhyme on the second syllable. This is getting kind of deep into lyric construction, but I'm guessing you realized this when you made your choices.