I was looking through a pile of Japanese stamps and I came across a multicolored one that appears to be missing one of its reds. This is the original one, Scott #2088 (Michel 2042; Sakura C1337) from 1991.
You can see in mine, however, that the lady has no mouth and the man has no embroidery in his shirt. I checked in Scott, Sakura, and JSDA, but I don't see anything about a color error. What exactly am I looking at here?