(masterpiece, best quality, ultra-detailed, photorealistic, HDR), beautiful young woman, 20 years old, completely nude, flawless sun-kissed skin, athletic and curvy hourglass figure, wide hips, round buttocks, slender waist, large natural breasts, long toned legs, wet flowing hair down her back, positioned on all fours, (doggy style), in shallow crystal clear turquoise sea, both hands and forearms submerged in water, fingers splayed and pressing into the sand below, her face turned toward the viewer, seductive blue eyes, soft parted lips, playful inviting expression, body arched so that both anus and vulva are fully exposed and clearly visible above the sparkling water surface, water glistening on her skin, sunlight reflecting on wet body, vibrant natural light, visible ripples and splashes, fine anatomical details of hips, thighs, genitals and face, dramatic coast and blue sky in the background, every feature rendered in sharp focus, realistic anatomy, five distinct non-fused fingers, <lora:MJ52:1>, <lora:SDXLHighDetail_v6-000005:.8>, <lora:Microwaist_XL_v01:.8>