caption: The image shows a drawing of a man with long hair, believed to be Leonardo da Vinci's self-portrait. His facial features are delicately drawn, with his eyes looking off to the side and his lips slightly parted. His hair is long and wavy, cascading down his shoulders. He is wearing a white robe with a blue sash, and his hands are clasped in front of him. His expression is one of contemplation, as if he is deep in thought.