So much to like here. Your figure work is even better than the last time you were posting here, though I'm sure it helps to just have a single image to concentrate all your efforts rather than a comic page. But it's strong and developed, while still being distinctly you.
The design aspect is really clever and eye-catching, with the incorporation of their numbers and symbols with the radioactivity warning. The skull is a clever touch - gives it a faint horror feel.
Speaking of horror, the color scheme (or rather, lack thereof!) gives it the feel of an old time movie. Your use of differentiated shading is awesome and the monochrome is striking. And then, there's the green. It really pops out even more, and reminds me of tinted sequences in old black and white movies.