A terrifying nun with an unholy and eerie presence, shrouded in darkness, her ghastly features emerging through intricate and detailed design. The scene is illuminated with dramatic photography lighting, capturing her in a photorealistic and cinematic style, every shadow highlighting the malevolent aura. The unsettling atmosphere is intensified by the 8k resolution, bringing her chilling visage to life in a portrait format resembling 9:16 aspect ratio.