Photorealistic image of a 20-year-old woman with long dark brown hair with purple highlights at the ends, tanned olive skin, large natural breasts, slim toned waist and wide hips, small silver hoop earrings, subtle natural makeup with defined brows and lashes, neutral seductive expression with parted lips and direct gaze at camera, wearing a black triangle bikini top with thin halter strings tied around neck and back with metal ring accents, minimal coverage showing deep cleavage, matching black string bikini bottom with side ties and metal rings hugging hips, posed reclining on her side on a white boat cushion, left arm extended along the deck with hand relaxed palm up, right arm raised with hand running fingers through hair, body curved to accentuate curves and abs, on a luxury boat deck with turquoise ocean water in background, clear blue sky, boat railing visible, natural sunlight casting glossy sheen on skin, hyper-detailed hair strands, bikini fabric texture, and water reflections, best quality, masterpiece, 8K resolution, sharp focus, sensual outdoor mood., (reclining side pose:1.5), (black string bikini attire:1.3), (seductive neutral look:1.4)