Dark fantasy world with shadow knights set in a mysterious cave background, showcasing transparency, surreal magic, and caustics that play with optics. A photorealistic portrait masterpiece with perfect anatomy captured in 32k UHD resolution, offering the best quality and highly detailed imagery. The scene is shot with a professional photography touch from a cinematic angle, utilizing reflection lights and 8k sharp focus. The knights and their surroundings are illustrated with impeccable detail and realism, ensuring a captivating visual experience free from negative elements like unrealistic anatomy, poor composition, or unclear features.