Dark fantasy scene featuring shadow knights in a mysterious cave with a surreal atmosphere. The setting has transparent elements, with caustic patterns from light reflecting off an underground river, creating a magical and otherworldly ambiance. The knights, with perfect anatomical accuracy, are depicted in a cinematic close-up angle, capturing their intricate armor and shadowy presence in 32k UHD resolution. The lighting highlights the realism of the scene with reflection lights enhancing the moody environment, maintaining the essence of a professional, high-quality, and immersive photographic experience.