I really like all the little touches like the billboards.
The billboards were one of the really fun bits. I spent ages trying to find artwork I liked that I could add text to, although the Persona Synthetics billboard is just a straight printout of art from the Persona Synthetics website.
I have also sourced a lot of posters from https://scarfolk.blogspot.co.uk/ because they give a proper feel for life in Bwendi. I just need to start adding them as flyposted bills to walls around town. Perhaps I should see if any of my figures would be suitable as bill posters. It would make a nice little diorama in the middle of a battle between the Peace Force and some random criminals.