Act as a steampunk concept artist with 10 years of experience in designing retro-futuristic worlds. Create a highly detailed DALL-E prompt for a mesmerizing steampunk circus scene featuring [MECHANICAL LION PERFORMERS] with brass-plated bodies and glowing amber eyes, [AERIALIST ACROBATS] in corseted leather outfits adorned with gears and clockwork wings, and a [GRAND CIRCUS TENT] made of copper panels and stained glass, illuminated by flickering gas lamps. Include intricate details like steam vents, whirring gears, and a crowd of Victorian-era spectators in top hats and goggles. The atmosphere should evoke wonder, danger, and the hum of machinery, with a color palette of burnished golds, deep reds, and oily blacks.