I like this picture because it really speaks volumes about the character qualities of the monsters. Godzilla looks like he's marching off to war, Rodan and Anguirus are joining him because obviously they are his two closest allies, Mothra's joining in because she kind of sees Godzilla as a tool to bring about balance to save the world and Battra reluctantly joining as well for the same reasons as Mothra, Titanisaurus and Kumonga are joining simply because they are fighting to survive and they know their best chance for survival is probably side with Godzilla in his quest.
Very impressive picture. The hero monsters on the charge, pretty cool to see Titanosaurus and Battra alongside the other heroic monster, also interesting to see Kumong a hero again. They all look like quite the strong force to be reckoned with.