Underwater scene of a blue mermaid holding a blue magic cat. Detailed photorealism. The mermaid's flowing blue hair floats in the underwater currents. The cat is an aquatic draconic cat with blue scales and fishy fins. Everything is blue: the mermaid's skin is blue, her hair is blue, her scales are blue, the cat is blue, the water is blue, the light is blue. It's all blue. Zoomed out, distant, long shot, wide angle lens, fullbody illustration : 1.0