Skeletal death herald before the colossal gate of Kur

NAMATAR, Herald of Death, Grand Vizier of Ereshkigal, final boss of a dark fantasy Sumerian mythology RPG. Full body portrait. An impossibly tall, skeletal humanoid wrapped in layered black ceremonial robes that seem woven from shadow and ancient funeral cloth. His skin is pale ash-grey, almost stone-like. His face is gaunt and corpse-like, with glowing pale blue eyes beneath a cracked obsidian funerary mask inspired by ancient Mesopotamian death masks. Long black hair falls over his shoulders. He carries an enormous ancient staff topped with the Seal of Ereshkigal, forged from black bronze and lapis lazuli. At his waist hangs the Tablet of Destiny chained with black iron. Around him float seven ancient bronze keys, slowly orbiting as if obeying invisible laws. Thin spectral chains emerge from darkness behind him, disappearing into the abyss. A faint blue spectral aura surrounds his body, illuminating drifting ash and dust. The ground beneath his feet is cracked black stone engraved with glowing cuneiform. Behind him rises the colossal Gate of Kur, covered with weathered cuneiform inscriptions, colossal statues and broken columns disappearing into darkness. Cinematic volumetric lighting from above, heavy fog, dramatic shadows, black, grey and desaturated blue palette, extremely detailed textures, photorealistic dark fantasy, ancient Mesopotamian architecture, gothic atmosphere, terrifying but majestic, symmetrical composition, ultra realistic, Unreal Engine, Octane Render, masterpiece, 8k, no cartoon, no anime, no modern elements, no sci-fi, no bright colors. --ar 3:4