When I published my article, Chappel's image was only available in black-and-white. I'm delighted that you can now view it - and Chappel's many other fascinating paintings - in full color and stunning detail as part of the Met's Open Access for Scholarly Content program.
The detail below captures the garment variety, cloth color, and display techniques of a slops-seller like Abrahams. Chappell even delineated the tiny buttons of the trousers and coats hanging from Abrahams's storefront. He drew the shop years after 1813 and as background to a gruesome dog-catching scene, but Abrahams's store clearly left an impression on Chappel, who remembered how important slop shops once were to American waterfront communities.
Detail, William P. Chapel, "The Dog Killer," from The Edward W. C. Arnold Collection of New York Prints, Maps, and Pictures, Bequest of Edward W. C. Arnold, 1954, the Metropolitan Museum of Art, 54.90.513.