You brought up Perpetua, and fans got a chance to see her in the Justice League Annual #1. Who came up with her design? It was Jim Cheung and Jorge Jimenez. Jim Cheung did the original sketches and Jorge Jimenez took it to a whole new level when he came in and designed her based on some of the original descriptions. It’s really a team effort. When you see her, her braids and head almost looks like DNA with the double helix structure around her ears, neck and eyes, and around her fingers; universes are formed and destroyed if you look closely.