little explanation about the caricature of John Locke. His face is divided into two terms: a good side and bad side (BLACK & WHITE) I wanted to say so because queça do not necessarily jump to the eyes.
Okay, maybe I was slow, but I looked at the image in the middle first, thinking "I wonder why it has the two images on the sides." then I look down, see the stones & was amazed. Very cool presentation.