背对蹲坐于膝上

full-body photo of a 28-year-old woman sitting upright with bent knees in front of a 34-year-old man leaning back on his hands with knees raised, side view, wearing a forest-green sweatshirt and loose navy trousers and a gray sweatshirt with loose olive trousers, both wearing white sneakers, on a picnic blanket in a sunny park, photorealistic, natural lighting