Invertible images

Square man on Subway with Square Christmas Present.
Inverts to
Lascivious Man.
There is even a smiling face at with blond hair at the bottom of Lacivious man.
Between the two main images there is also a "Face of Negation" with a large rare capital "N"

I had these two images in my files for 22 years until i started inverting files to see what i could find and found they were inverts of each other. The original shot was of the Square Man in the Subway,