Ultra-realistic vibrant close-up portrait of a young woman (100% face match to reference), looking directly at the viewer with a confident subtle expression, head slightly tilted. Long wavy black hair cascades over her left shoulder and chest, framing her face with dark eyes, sculpted brows, and bright red lips. She wears a distinctive blue-and-yellow checkered bikini top. Soft dappled shadows, like palm leaves, fall across her right shoulder and upper chest, adding depth and a summery feel. Background: blurred turquoise ocean with white waves and sandy shore, under bright natural sunlight. Palette: vivid blues, yellows, black, red, and warm skin tones, creating a vibrant, warm, tropical mood.