As of now, I've almost finished coloring in Gotham the Wicked Himself (including His dress), and I've made good progress in shading Him in. When I'm done with that, I intend to do the same for Sol (Earth's sun) and Earth (whichever comes first), then finish it off by coloring in the outer space of the illustration. If all things go according to plan, I should be able to get this illustration done by tonight or tomorrow.
Just like my last blog, here's a link to view my progress that I shared on my Tumblr.