“Large Vase of Flowers,” by artist Jeff Koons, an exquisitely colorful, vibrant work with complex allusions to social hierarchies, taste, life cycles, and sex, ultimately sold for $5,682,500. Christie’s Post-War and Contemporary Art Evening Sale totaled $74,151,500/£44,669,578/€49,766,107. Works by artists Peter Doig, Jeff Koons, and Joan Mitchell commanded the top prices. In addition, new world [...]