caption: The image shows a painting of a woman in a purple dress, with a dark background. The woman is believed to be Sir Thomas Rowlandson, as indicated by the text at the bottom of the painting. She is wearing a long, dark purple dress with a high neckline and long sleeves, and her hair is pulled back in a neat bun. Her facial features are delicate and her eyes are looking off to the side, giving her a regal and dignified look.