I've been playing around with different template headers for the last couple of months. I think I've finally settled on the one you see now. It's cropped from a painting by British pop artist David Hockney titled Portrait of Nick Wilder. The subject looks like he could be exquisitely bored. It seems to fit this blog.
Here are the various headers I've tried out, and some I never used. If you use a Blogger Template with a 760 x 200 header (I use Kubrick for Blogger), these are ready to go.