>>10798762Eh Manta's helmet was originally meant to fit his whole head since it was just a generic diving helmet drawn to look evil with the glaring eyes (the "manta" was originally meant to refer to his manta submarine). Artists didn't really play up the flattened helmet/long neck until a bit later to mimic the design of an actual ray, a creative decision that would permeate going into the 90s up to the mid-2000s. It was around New 52 up to Rebirth that artists made a bigger effort to maintain a proper size for his helmet, and both movie designs reflect just that.