(A photorealistic depiction of a young adult mermaid deep underwater in the dark deep sea:1.4), with floating purple hair floats in the depths of the dark ocean, (perfect darkness:1.2), (perfect mermaid:1.1), (she holds an ancient book with yellowed parchment pages:1.3), In one hand, she holds a round, bulky deep-sea fish with a wide head and large teeth, featuring a fine long rod-like appendage from its forehead ending in a fine glowing orb, (glowing orb slightly lit the pages and her beautiful face:1.5), (the black background features a mystical aura, the mermaid’s skin, scales, and facial features are rendered in exquisite detail, capturing every texture and nuance, She casts an incredibly seductive, loving gaze upon the viewer, accompanied by a faint smile, The image should be in high resolution and photorealistic quality), (the dark background features a mystical glowing underwater landscape, with shimmering corals, gentle sea plants, and curious glowing marine life:1.8), the mermaid’s skin, scales, and facial features are rendered in exquisite detail, capturing every texture and nuance. The image should be in high resolution and photorealistic quality