A brown horse, mid-gallop, runs along a beach at sunrise or sunset. The horse is positioned near the center of the image, moving toward the right side of the frame. Its coat is a rich, dark brown, and its mane and tail are flowing freely, caught in the wind. The horse appears strong and powerful, with visible muscles and a well-defined form. Large, foamy waves crash around its legs, and the water reflects the golden light of the rising or setting sun. The water is a mixture of dark blue and golden hues. The background displays a vast, cloud-filled sky, with a large, luminous golden moon prominent. A smaller, golden sun is visible near the upper right corner. The colors are rich and vibrant, with warm tones dominating the scene. The style is photorealistic, but with a painterly quality, enhanced by the reflections in the water and the dramatic lighting. The overall atmosphere is one of freedom, power, and beauty, evoking a sense of wildness and the majesty of nature. The perspective is slightly angled down towards the horse, focusing on the horse's dynamic movement and the interaction with the water and surroundings.