Symbolism.

Not the regular kind of symbolism, but the actual literary movement kind. This is an example of what I would call Symbolist art. It's from "Superman meets Swamp Thing", written by Moore, naturellement. It's symbolist because there is no beast with two huge fangs that appears in the book; rather, this image just seems to be a titanic hallucination in Superman's mind....

.... oh, didn't I tell you? I'm subjecting comic book images to graphical analysis... it's the latest trend....