On the left we have King Roach in his what is essentially his final design. He’s about 15 feet tall. In the middle is an “average” six foot tall human. I’m not sure what the last figure is. It looks like some sort of giant apeman. The nose is wrong for it to be a gorilla though the posture is similar to the original stop motion King Kong. It’s about the right size too. During the island scenes Kong is 18 feet tall. He becomes 24 feet tall once he’s in New York. Denham must have fed him a lot of vitamins on that trip from the island to the city.