A young woman smiles while lying on a white bedsheet

A top-down, eye-level shot captures a young woman with long, dark, wavy hair lying on her back on a white, creased bedsheet. She is wearing a delicate, nude-colored bikini with thin straps. Her eyes are wide open, and she has a radiant, genuine smile, showing her teeth, with a joyful expression. Her hair is spread out around her head, creating a dynamic visual flow. The lighting is soft and natural, highlighting the contours of her body and the texture of the sheets. The image has a shallow depth of field, keeping the woman in sharp focus while subtly softening the background. The overall mood is one of carefree happiness and natural beauty, with a warm and inviting atmosphere. Realistic photography, natural light, high detail, soft shadows, bokeh.