caption: The image shows a triptych of a painting of a man on a horse, surrounded by a group of people. The painting is set against a white background, and the figures are depicted in a realistic style. The man is wearing a long robe and a hat, and is holding a staff in one hand and a book in the other. The other figures are dressed in colorful clothing and are standing in a circle around him. The colors used in the painting are vibrant and the details of the figures and the horse are clearly visible.