Leviathan demon of envy, muscular male, green scales, sharp teeth, piercing yellow eyes, horns on forehead, massive wingspan, dark misty aura, sinister smile, luxurious velvet cape with gold trim, ornate silver armor, sharp claws, dramatic posing, ominous cloudy sky, eerie dim lighting, mysterious ancient forest, twisted tree roots, foggy atmosphere, cinematic composition, high contrast, horror theme.