I think you are referring to the 1 1/2d stamp as "chicken eyes" as they appear very close to the nose and crosseyed like a chicken from the front. The other stamp has a right eye that seems to look ahead, while the left eye has drifted off to the side, a "lazy" eye

I had not noticed that before, but interesting. Bush has "chicken eyes" also but I doubt he will grace many stamps in the future. He has a "beak" of sorts also.

Jim