Elegant back view athletic woman window photography

Pose: Standing in front of a floor-to-ceiling window with back to the camera. She gently places both hands on the windowsill, elbows naturally relaxed, upper body leaning slightly forward. Her spine remains elongated, shoulders relaxed, highlighting the elegant lines of her back. She gently turns her head over her shoulder toward the camera, revealing a soft three-quarter profile with a calm and peaceful expression. One leg is straight, while the other is slightly bent, forming a natural S-shaped silhouette. A few strands of hair from her loose, messy bun softly touch her face. Black crisscross-design sports bra and high-waisted sports shorts, paired with a simple and minimalist aesthetic. Soft morning light pours in through the glass, creating delicate rim lighting, realistic skin texture, and subtle highlights on the shoulders and back. Hyper-realistic photography style, high-end editorial lifestyle photography, natural anatomy, relaxed elegance.