Christies has some phenomenal art for sale coming up. If we were playing the "if I had a million dollars" game, this study by Francis Bacon would be on my short list. Sort of a two for one. I'm fond of the artist and the subject.  

Three Studies of Lucian Freud, 1969

“When I was younger, I needed extreme subject matter for my paintings. Then, as I got older. I realized I had all the subjects I needed in my own life.”

-Francis Bacon