This week has shown that there’s still a lot of money sloshing around London’s art market; Christie’s three-pronged 21st/20th century evening sale on Thursday took £197.5 million ($265 million), one day after Sotheby’s modern and contemporary auction brought £131 million ($175 million). The result marked a **52 percent increase** on the house’s equivalent sale last year, achieving a **96 percen sell-through rate by lot** and **98 percent by value.** There were also new artist records set for Henry Moore, Toyen, and **Dorothea Tanning. Four works by **Cecily Brown, Bridget Riley, Lucian Freud, and Frank Auerbach were withdrawn before kick-off, and carried a collective high estimate of nearly £17 million. Christie’s sales–21st/20th century, “The Art of the Surreal,” and “Modern Visionaries ** – **The Roger and Josette Vanthournout Collection” (in that order)—felt like a slog at times, with 90 odd lots sold in nearly four hours.…