underwater city, New Atlantis, futuristic architecture, bio-luminescent coral, treasure chests, mermaids, aquatic bounty hunter, sleek scuba gear, harpoon gun, dynamic pose, swimming, treasure hunting, schools of colorful fish, submerged ruins, holographic displays, neon lights, high-tech submarines, reflective surfaces, metallic textures, coral reef, sea turtles, ambient underwater lighting, wide-angle lens, 3/4 view, crystal clear water, sun rays filtering through water, advanced robotics, treasure map, action-packed scene, vibrant marine life, detailed environment.