Sydney Sweeney mirror selfie in athletic wear

The prompt is already in English. A translation would be identical to the original content. The prompt describes a mirror selfie photograph taken with an iPhone 16 Pro front camera, featuring a young Caucasian woman in her early 20s with an athletic build, blonde hair, and a playful expression. She is seated sideways on a white stool wearing a white cropped ribbed cotton top and light periwinkle blue high-waisted ruched yoga shorts. The photo includes detailed specifications for the subject's appearance, clothing physics, skin texture, biological features, environmental elements, lighting, camera settings, and post-processing effects to create a realistic amateur smartphone mirror selfie aesthetic.