4. Mona Lisa face

A special term, "sfumato", has been attributed, 270 years after its creation , to the technique used by Leonardo da Vinci to paint the face of Mona Lisa. The term, derived from the Italian "sfumare", translates the subtle gradation of nuances between the different colors of the face. Many researchers have long wondered about the technique of this sfumato , suggesting, among other things, the use of a glaze, a technique invented by the Flemish Primitives and unknown in Italy at the time. However, until now, no analysis...