caption: The image shows a portrait of a man in a white shirt, drawn on a piece of paper. The man is believed to be Sir Thomas Rowlandson, as indicated by the text at the bottom of the image which reads "Sir Thomas Rowlandsson". He has a serious expression on his face, and his hair is neatly combed. His eyes are focused and his lips are slightly parted, giving him a thoughtful and contemplative look. His clothing is simple and his posture is relaxed, suggesting he is deep in thought.