I love all his included nods in KC -- to the original covers, to long-forgotten characters... and to long-changed costumes. One of the most striking choices in KC was having Superman's chest emblem backed in black rather than yellow -- except it was black when he first got the more familiar chest-emblem shape. When I get far enough down my queue to tackle my custom Kryptonian outfit, I'm going to do the chest emblem backing in black with metallic gold powder mixed in, to kick things up a bit. I need to scan that page from KC #2 where his takes on Detective Comics #27, Action Comics #1, and Wonder Woman #1 were...
--Jonah