Barfly

With this illustration (and the series that it is a part of) I found a style and method that departs from a dynamic scribble of lines, from there departing to choose a theme (this one is 'pub') and use that to fill in the spaces between the lines, creating a dynamic 'world'.
This type of image makes for a stunning header that visualises, in one take, what you're all about, but invites lingering on to explore the further details.