The mournful image pays homage to the victims of a 2015 terrorist attack.
While the mayor of London, Sadiq Khan, announced a review of all statues connected to slavery.
The somber yet striking painting is accompanied by a statement from its reclusive artist.
Featuring works by KAWS, Takashi Murakami, Josh Sperling and more.
Going on auction to raise money for NHS charities.