Loki, god of mischief, sitting, leaning on a ancient, twisted, gnarled timeline tree, branches tangled with clockwork gears, Roman numerals, celestial bodies, wispy clouds, misty atmosphere, soft ethereal lighting, mysterious ambiance, intricate root system, worn leather-bound book lying open at his feet, quill pen and inkwell nearby, Norse mythology-inspired attire, golden accents, dark green cape, silver brooch, mischievous grin, piercing green eyes, subtle steam punk elements, cinematic composition, shallow focus.