This has been the most challenging drawing so far. Mainly, because I had a tough time deciding what to draw; and once I picked something, it was not the best choice: loosely related to the topic, too time consuming (especially compared to the other drawings), and it could be created with SVG in a much simpler way... Although I like the result, it is not really worth it on CSS.

Anyway, the drawing is a 1920s-looking gangster (a member of the mafia or organized crime):

It is based on this picture from iStockPhoto, and it is "responsive" (to the viewport.)