I really like the subject, and love how it fits the challenge, but it's a pretty bad, under-exposed shot. Hmm...concept=great; technicals=terrible. "5."
Nice idea and expressions. But underexposure is too evident, consider rescuing the image by bumping levels, especially midtones, in Photoshop or equivalent.
i love the expression of the two men in the front but i think this may be more effective if the picture were cropped right before the girl in white's face (third back) vertically and right after the man in red's seat horizontally (cutting out the girl with the headband and the white block)