The position of the winged individual—male or female—in the drawings Allegorical Sketches is parallel to the two figures in the other works from that time, as well as that of the woman in the couple portrayed beneath Barcelona Rooftops, seen in the X-ray and the infrared reflectography.

The first connection between these drawings and La Vie is established by a strange character—half man, half bird—and by the semi-reclining woman, both of whom appear below the squatting figure in the lower area of the painting in the Cleveland collection, visible in the X-ray displayed in the exhibition.