Going to give this one a go, I've been thinking over the last few days about which direction to take. I was going to go for something a little more abstract, but I think I've come up with an idea that could produce a good atmosphere:

It will be a fairly simple scene, with focus on 2 main characters - a robot much like a sentinel from the matrix, vs a human. I envisage the peice to be an over-shoulder shot with the main attention on the sentinel. I want a nice threatening pose from the robot, and the man in a stance which would represent fear and loathing.

Some will probably think my idea isn't imaginative, but I think a lot of people will understand the subject, and the motives of each character. Plus obviously the darkness of the sentinels should produce some really moody visuals. Comments welcome.