Roberto,
Thank you very much for sharing the great pages of Italy definitive stamps show women in art. Well done!

Please, identifications of three of the images:

Retrato de Mujer - Venus from "Venus and Mars" by Paolo Veronese
Mujer 3 - "Antea" (also known as Portrait of a Young Woman) by Parmigianino
Mujer 4 - Flora from "La Primavera" by Sandro Botticelli
Regards, Eli