Are we talking about a cone light effect? More foggy? Too bad carrara doesn't do that effect properly with transparency. I was talking about sub-surface scatter, which is in c5, but not prior. Even fresnel, also in c5 on the heads would be interesting.I do think that there needs to be a bit more technology in the picture with robots...maybe something funny like silicon chips instead of poker chips or some techno cd's. The details do make the story more interesting.

No need to think outside the box....
    Just make it invisible.