caption: The image shows a black and white drawing of an old man with a long beard, believed to be Leonardo da Vinci's self-portrait. His facial features are detailed and his eyes are closed, giving him a peaceful and serene expression. His hair is long and wavy, and his beard is full and full of life. He is wearing a long robe and has a crown of thorns on his head. His hands are clasped in front of him, and he is standing in a contemplative pose.