Cinematic portrait of an ancient elderly wizard, Salazar Slytherin, pale sickly white skin, long thin white beard and matching long mustache. He has deep-set, piercing intelligent eyes. He is wearing heavy, ornate medieval black robes with silver embroidery and emerald green silk details. He is leaning his hand on a waist-high silver walking cane with a silver dragon head handle. Dark, moody lighting, dungeon background with stone arches, high detail, 8k, realistic textures, wizarding world aesthetic.