The image shows a painting of a man in a blue coat, framed in a photo frame. The man is believed to be Sir Thomas Rowlandson, as indicated by the title of the painting. He is wearing a navy blue coat with a white collar and cuffs, and a white wig. His facial features are detailed and his eyes are looking off to the side. He has a serious expression on his face, and his hands are clasped in front of him.