Refreshing greens for a summer day... Above: Sonia Delaunay, watercolor on paper, 1924 Above: Henri Matisse "Trivaux Pond" 1916/1917, Collection of the Tate Museum Above: Henri Matisse "Seated Nude" 1925, Private collection, photograph by Marina Schinz Above: Richard Serra "Untitled" 1971, Private collection, photograph by Marina Schinz Above: by Lucio Fontana, Concept Spatiale. Above: Via bldgspace Above: Henri Matisse "Laurette in a Green Robe (Black Background)", 1916, Metropolitan Museum…