South wall mural of Harmony in Blue and Gold: The Peacock Room, James McNeill Whistler, 1876-77.
Hurt and angry, Whistler concluded his work with a vindictive allegorical mural of two battling peacocks pointedly titled "Art and Money: or, the Story of the Room." The artist is the poor peacock on the left. Its silver crest feather refers to Whistler's distinctive white forelock. Leyland, the rich but stingy patron, is the peacock on the right, glittering with coins.
In what he hoped would be the final verdict on the significance of the room and Leyland's place in it, Whistler wrote to his former friend and patron:
The World only knows you as the possessor of that work they have all admired and whose price you refused to pay… From a business point of view, money is all important. But for the artist, the work alone remains the fact. That it happened in the house of this one or that one is merely the anecdote — so that in some future dull Vasari — you will go down to posterity, like the man who paid Correggio in pennies!