Graham Nickson: Paintings Salander-O’Reilly Galleries 20 E. 79 th Street, New York 212-879-6606 Giorgio Cavallon: Paintings Salander-O’Reilly Galleries Both shows through April 30 What, for a painter, surpasses the nobility of the human figure? Why, several human figures—or so we might gather, thumbing through any history book of western art. So many of the “mega-hits,” … Continued