Backgrounds are part of the future endeavor, but CM is quite the busy artist, so they are going to take time to get there. I seem to get pretty mixed reviews about that. Overall, I do want them to mesh better with the characters though, so I'd prefer them to be drawn instead of 3D renders. Ya know, I've not really thought about the text box in a while. It's something I threw together when I prepping the project, and I've barely thought about it since. It really does need an update too x3
Same with the sound, it's a work in progress. I've experimented with it in recent updates, and the overall verdict I'm coming to is just to add ambiance noises to most scenes, like what you've suggested here.
Thanks! There's still tons of work to be done here ;D