caption: The image shows a painting of a man in a tuxedo sitting in a chair, with a wall in the background. The man is believed to be Sir Thomas Rowlandson, as indicated by the text at the bottom of the painting. He is wearing a black suit with a white shirt and a black bow tie, and his hands are resting on the armrests of the chair. His expression is serious and contemplative, as if he is deep in thought.