Prompt
"Generate a realistic portrait of Severus Snape, a male fictional character, in a dimly lit, mystical atmosphere. Depict him as a tall, thin figure with black hair and black eyes, wearing a worn, dark-colored robe with a subtle sheen, indicating his position as a Potions Master and Head of Slytherin house at Hogwarts. Incorporate a subtle, enigmatic expression, conveying his complexity as a double agent, loyal to both Dumbledore and the Order of the Phoenix, yet bound to the Death Eaters. Include a cauldron or potion-related elements in the background, symbolizing his expertise in Potions and Occlumency. Style: dark, mystical, and introspective, reminiscent of the Harry Potter series."