A hyper-realistic, cinematic image of a menacing demon inspired by the Night King from Game of Thrones, envisioned by George R. R. Martin. The demon's full body is encased in intricately detailed neon armor that glows in shades of purple and blue, adding an ethereal yet terrifying aura. The armor design is ornate, showcasing elaborate patterns that catch the eye. The scene is enhanced with moody, cinematic lighting, creating dramatic shadows and highlights that emphasize the demon's striking features. Trending on ArtStation, the artwork is rendered in 8k resolution, utilizing Unreal Engine 5 for exceptional detail and realism. The focus on high details ensures a lifelike appearance, with every aspect meticulously crafted to evoke fear and awe. Balanced in a 9:16 aspect ratio, this masterpiece is both haunting and mesmerizing, perfect for setting the stage for a chilling narrative.