I would class it as a rock ballad. Although it does not sound like him at all, I am strongly reminded of David Bowie, Harry Chapin, or something from a rock opera.

I would say build as you want musically. The emotion comes through the words and your tone of voice rather than musical dynamics. A gritty rhythm guitar added during the second verse and a singing guitar lead--or a cello--after the second verse (and playing a countermelody thereafter) would not be out of place.

Adapt the line so that you can sing it rather than worrying about making "the note." The message is the important thing here and outweighs the delivery.

I think highly of what you have shared so far. (I also think it is closer to being finished than you do.) This one is worth developing.

R.

"My primary musical instrument is the personal computer."