"Playing Card War" is just that. It's a collage/montage of playing cards from the Iraq war; visions of helicopters, etc. Notice the shape. Is it a football? You decide. Because it's all a game in the end... Isn't it?
Interesting composition. I actually thought it resembles "the bean" in Chicago... a humongous bean-like thing that is coated with a reflective surface. Nice idea; nice job.