Some vintage Ultraseven record and publication covers from Japan done in that inimitable colorful 1960s style, heavy on the primary red, blue, and yellow.
Look closely at the first image, where Ultraseven has a mouth with a lower lip, and it is open! He also has human eyes behind his hexagonal ones. I wonder if the illustrator wasn’t paying attention, or it had been painted early in the production process where the details weren’t ironed out yet.