caption: The image shows a self-portrait of a man with long hair and a beard, painted by Rembrandt van Rijn. The painting is framed with a watermark on the left side. The man's face is depicted in a realistic style, with his eyes looking directly at the viewer and his lips slightly parted. His hair is long and dark, and his beard is full and well-groomed. He has a serious expression on his face, and the colors used in the painting are muted and earthy.