Ms. Reid and her husband, Alasdair Doggart, listened to speeches before joining a march to the site of the Colston statue. After they watched the crowd tear it down and dump it in the water, the couple returned to the empty plinth, where — helped up by Mr. Doggart — she stood on the plinth and struck her pose.
“It wasn’t as easy as it looked because it was a lot higher than I thought it was,” Ms. Reid said. “My legs were jelly. It was a slow rise, but when I stood up and raised my fist, the crowd cheered like crazy.”
Mr. Doggart snapped a photo, which he posted on his Instagram account. The next morning, after a colleague of Mr. Quinn’s showed it to him, he called Ms. Reid and proposed the project. She traveled to a film production studio outside London and recreated the pose for Mr. Quinn, who arrayed 200 cameras to shoot her from every angle.
After he made a three-dimensional scan, Mr. Quinn created the sculpture from resin. Working in bronze, he said, would have added several months to the project, and he wanted to install the piece while memories of that day were fresh.
Mr. Quinn is part of a cohort of British visual artists, known as Young British Artists, or Y.B.A.s, who came to prominence in the 1980s. The group, which includes Damien Hirst and Tracey Emin, is known for the shock value of their works, like Mr. Hirst’s display of a shark preserved in formaldehyde.
Mr. Quinn’s best known work is a cast of his head, made from his own frozen blood. He also drew attention for a marble sculpture, “Alison Lapper Pregnant,” which depicted a woman with a condition that left her with no arms and shortened legs. It was placed on a plinth in Trafalgar Square in London from 2005 to 2007.