A set of three self-portraits painted by Francis Bacon fetched $34.5 million Monday at Christie’s sale of post-war and contemporary art in London.

The Francis Bacon triptych had been estimated to go for $20 million and fared spectacularly better than anticipated. Made of panels measuring 14-by-12-inches, the triptych titled “Three Studies for Self-Portrait” was created by the artist between the 1960s and mid-1970s.

“I loathe my own face, but I go on painting it only because I haven’t got any other people to do,” the painter told British art critic and curator David Sylvester at the time, as quoted by the New York Times.

The artist’s record price at auction was set in May, when a larger triptych titled “Triptych, 1976” was sold for $86.3 million at Sotheby’s in New York.

Other spectacular sales Monday night were a sculpture by Jeff Koons, “Balloon Flower (Magenta),” sold for $25.8 million, a record for this artist, and Lucian Freud’s 1980 canvas “Naked Portrait With Reflection,” which went for $23.5 million.

Koons’ previous record was $23.6 million for “Hanging Heart (Magenta/Gold)” at Sotheby’s in New York in November.

Freud’s painting had been expected to fetch $3 million to $3.9 million. The painter holds the record auction price for a work by a living artist, after “Benefits Supervisor Sleeping” fetched $33.6 million in New York in May.

Last week, one of Claude Monet’s water lily paintings, titled “Le Basin Aux Nympheas,” created in the early 1900s, was sold at Christie’s in London for $80,451,178, breaking the auction record for the French impressionist artist. The painting is part of a collection of large-scale paintings of water lily paintings that Monet put up for sale during his lifetime.