A hyper-detailed 8k ultra-realistic image of a frightening demon resembling the Night King from Game of Thrones by George R.R. Martin, showcasing a full-body view. The creature wears intricate purple and cerulean neon armor, adorned with ornate designs. The scene is illuminated with dramatic cinematic lighting, popular on platforms like ArtStation. With razor-sharp focus and high detail quality, the image utilizes Unreal Engine 5 for a visually stunning effect. The armor's luminescent patterns almost pulse with an otherworldly energy, heightening the sense of dread. The aspect ratio is 9:16, ensuring a towering, intimidating presence that captivates from every angle, with a quality setting prioritizing sharpness and clarity.