caption: The image shows a drawing of an old man with a long beard, painted by Rembrandt van Rijn. The man is depicted in a realistic style, with a strong jawline and a full beard. His eyes are closed, and his expression is peaceful and serene. His hair is long and wavy, and he is wearing a white robe with a blue sash. The background is a light blue, and the painting is framed in a simple black frame.