Untitled AI art by @resourceful-bell1

An ultra-realistic 8K horror digital painting of La Siguanaba standing in a dark, haunted river at midnight. She has the body of a ghostly woman, pale and wet, with long, tangled black hair cascading forward and fully covering her chest. Her face is a terrifying, rotting horse skull, with glowing red eyes, exposed bone, dripping blood, and torn skin. Her mouth is open in a scream or twisted smile, revealing jagged teeth. Thick mist coils around her as dead branches reach from the riverbanks. The water is black and reflects a monstrous, distorted version of her. The atmosphere is oppressive and cursed, with supernatural energy distorting the air. Dramatic, cinematic horror lighting with deep shadows and sharp highlights for maximum impact. Nightmarish and unsettling.