Picture an otherworldly mermaid with bioluminescent scales, gliding gracefully through a futuristic underwater city. Render this in a photorealistic style, capturing the ethereal glow of the mermaid contrasted with the city's sleek metallic structures. The image is a wide view, filled with bioluminescent sea creatures and radiant coral formations --ar 5:7 --s 250 --style raw --v 6.0