A man looks at a pablo Picasso painting (left), Femme nue assise, at a Pablo Picasso painting (center), L'amitie I Esquisse du tableau, at a Pablo Picasso painting (right), Trois femmes, of the Russian collector of French modern art Sergei Shchukin - Chtchoukine collection - as part of the exhibition Icons of modern art at the Louis Vuitton foundation in Paris on October 20, 2016.