((4k, 8k, Ultra HD)), ((masterpiece: 1.2)), ((highest quality: 1.2)), ((intricate details: 1.5)), ((perfect anatomy: 1.2)), ((Secretariat (Uma Musume), solo, 18-year-old girl, dark chestnut horse ears, clear reddish-brown eyes, dark chestnut hair, white bangs, long hair, voluminous fluffy hair, smooth skin, dark chestnut horse tail, large breasts, 170cm tall, sunglasses, black long coat, white turtleneck sweater, necklace, trousers, high heels)),
