A while back I designed the poster for an upcoming film adaptation of G.K. Chesterton's novel, Manalive. One of the stars of the movie, Kevin O'Brien, did a dramatic reading of the text which will be coming out soon. Here's the mockup (note that I had the name wrong--Dale Ahlquist.) A pivotal scene in the book involves a revolver, and it opens with a large man scrambling after his white panama hat through London.
The London houses here were inspired by a book on early 20th century London that I picked up at a used bookstore a few years ago.
Pen and ink, colored in Photoshop. Also posted at my blog.