caption: The image shows a painting of a man on a horse with a dog, set against a white background. The painting is believed to be from the ancient Mesopotamia, dating back to the 6th century BC. The man is wearing a long robe and a hat, and is holding a staff in one hand and a shield in the other. The dog is running alongside him, and the horse is galloping forward. The colors used in the painting are vibrant and the details of the man and the dog are clearly visible.