I don't know about songs that describe my story or whatever, but if I had to make "Project: Achilles" into an anime, this would be the song for the opening. I think it's kind of big band with a twist, and my comic is 1940s with a twist, so they kind of fit together along those lines.
There's a couple different songs that remind me of "Godswater", but the main one is probably "Safe and Sound", by Taylor Swift feat. The Civil Wars. It's kind of quiet and folksy, and a little sad, I think.