Create a YouTube thumbnail (1024x576) with a gradient background of blood-red fading into black. Add subtle textures like cracks or shadowy patterns to enhance the eerie atmosphere. Use soft lighting to add depth while keeping most of the scene dark. The overall design should convey a sense of psychological horror. Place the word 'SOBRENATURALIZANDO' in a clean and modern font at the center of the image, making it the focal point.
