A dark fantasy anime illustration of a beautiful demon girl with long flowing black hair and glowing red eyes. She has sharp horns and pointed ears, wearing an elegant black gothic dress with intricate lace and glowing red patterns. She stands under a massive glowing full moon, her hair flowing in the night wind, with a mysterious and alluring expression. The atmosphere is dramatic and fiery, with red and black tones dominating the scene. Highly detailed, sharp focus, 8K resolution, cinematic lighting.