A towering, stylized Gundam Barbatos mecha stands amidst snow-covered obsidian ruins, its metallic armor gleaming with a dark patina evocative of aged bronze. Intricately carved Aztec glyphs adorn its surfaces, hinting at ancient power. The mech's joints gleam with jade and onyx accents, reminiscent of opulent royal regalia. A flowing rat-style Pao cloak drapes around its shoulders, crafted from luxurious black velvet trimmed with silver embroidery. Cold, wintery light filters through the scene in a palette reminiscent of early Kinemacolor film, casting stark shadows and highlighting the intricate details of the Gundam's weaponry and the weathered grandeur of the Aztec backdrop in the Ashcan School style.