Hmm, you could maybe use two neon morph green suits? A bottom layer to attach the wiring for green lighting fixtures to that would dissipate evenly, and then a top layer that would hold the black skeleton outline. That way when you turn it on, the green lights shine through evenly into the second layer and all around the black skeleton on the outer layer. Not sure exactly what kind of lights to use, but it could be a start to build off.