I think that, more than anything, it’s the coloring that makes this THOR cover by Jack Kirby stand out. There’s a lot of interesting modeling being done, in a way that wasn’t typical for the time, and the overall red hue gets across a real feeling of Armageddon. Also impressive is the fact that Mangog is so large that only his talon can fit onto the cover, and Thor seems as helpless as a rag doll within it.