A steampunk mermaid explores a glowing coral city beneath the sea

A majestic steampunk mermaid, adorned with intricate brass goggles and clockwork fins, explores a sunken, bioluminescent coral city. Gears and cogs are fused with organic coral formations, creating an uncanny juxtaposition of nature and machinery. Schools of metallic fish dart through the ruins, their scales glinting under the ethereal glow. The scene is captured in a wide-angle, cinematic shot, emphasizing the grand scale and fantastical elements.