Using a high-quality image generation model, please create a detailed, photorealistic digital illustration depicting the following scene: A black knight, wearing dark armor and a flowing cloak, is standing in the midst of a dark, shadowy environment. The knight is holding a shining, ornate sword in their outstretched hand, the blade gleaming with a magical, ethereal light. The background should be shrouded in darkness, with minimal lighting to create a sense of mystery and foreboding. The image should be composed in a dramatic, cinematic style, with the knight positioned as the central focus. The lighting and shadows should be used to accentuate the knight's imposing presence and the power of the shining sword. Please ensure the final image is high-resolution, with attention to fine details and realistic textures. The overall tone should evoke a sense of fantasy, adventure, and the supernatural in shadow dimension