There are multiple paintings of the Great Fire of London; these are my favorites.
I also created a map of London, so readers could gauge the progress of the Fire. You can find the full-size version here.
I’m pleased to share, with permission, a piece of fan art from a reader:
You can also view a selection of photos from my research trip on Flickr.
As for castings, I imagine Jack Ellin as Paul Bettany, and Lune as Olivia Wilde. (I don’t have a casting for Antony, alas.)