Nabbed this shot in Washington, DC. The back pack begs the viewer's attention. Canon 60D, Canon 50mm f/1.4.
Perhaps leaving it as colour and cropping it 50% would of been better?
Just that I can see the girl holding the guys hand and thus it makes sense as to why he's wearing it.
If you cropped in so the girl isn't there but the broad to his right is (as if she's giving him a weird look it might have more impact).