caption: The image shows a painting of a brown horse galloping on a brown background, created by George Stubbs. The horse is depicted in a dynamic pose, with its mane and tail flowing in the wind and its hooves kicking up dust as it gallops across the canvas. Its eyes are focused and determined, and its mouth is slightly open, as if it is ready to take on any challenge. The colors used in the painting are vibrant and the details of the horse's coat and mane are carefully rendered, giving the painting a realistic and lifelike quality.