A very spooky image. I was reading up on Eureka on Wikipedia (not very sophisticated, I know!) and the Chinese lanterns against the Victorian house structure are quite reminiscent of the kind of conflict of cultures. The fact that it's a negativized image plays on the negative, I'm thinking. It's like the background which is shutting out any kind of light with the clouds and the tree branches and then the searchlight is on a disturbing centre... I think there's a theme of spying going on, with the angle and the way we're looking behind the guy's back. The blue flowers in the foreground of the picture and the blood red writing of Casino emphasises the fact that history is made of luck and chance and needless brutality (the altar of sacrifice).
The guy in the picture is "mowing the lawn".