(masterpiece, best quality, highres, photorealistic), 18-year-old mermaid girl inspired by Ariel from The Little Mermaid, youthful and extremely attractive, pale smooth skin with a faint sea-glow, vibrant long red hair flowing underwater in soft strands, large expressive turquoise eyes with shimmering reflections, subtle blush across her cheeks, glossy parted pink lips in a sensual underwater gasp, upper body fully nude, with large round and firm breasts slightly floating upward due to buoyancy, pink nipples gently erect and glowing through the water, flat soft stomach, slim waist transitioning into a shimmering iridescent mermaid tail, translucent sea-green scales with glowing blue accents, tail fin elegant and flowing, her lower half twisted slightly to expose her pussy — glistening and smoothly detailed with visible folds and delicate clit — where the scales give way to soft skin, detailed hands with slender fingers reaching forward, floating among glowing coral reefs, jellyfish and drifting strands of seaweed, surrounded by floating bubbles and particles, soft volumetric lighting filtering from above, creating dramatic shafts of light across her curves, deep blue gradients in the background, ethereal underwater glow, fantasy ambiance, HDR, ultra-detailed anatomy and skin, glowing magical underwater aesthetic, realistic water physics and cloth movement, (glistening wet body texture:1.2), <lora:PerfectEyesXL:1>, <lora:add-detail-xl:.8>, <lora:SDXLFaeTastic2400:.75>, <lora:SDXL_GodPussy_v1:.7>