A photorealistic cinematic vertical mirr

A photorealistic cinematic vertical mirror-selfie portrait of a clearly adult young woman in her early twenties, around 20 years old, standing in a softly lit bedroom and photographing herself through a tall black-framed arched floor mirror. Her specific ethnicity or race should remain unspecified because it cannot be reliably determined from appearance alone. She has light-to-medium warm-toned skin and long, thick, dark brown to nearly black hair falling freely past her shoulders in soft natural layers. Most of her face is obscured by the angle, her hair, and the smartphone held near her face, so her exact facial features, eye shape, eye color, nose, lips, and expression are only minimally visible; preserve this partially hidden, candid quality rather than inventing a fully visible face.

She stands in a three-quarter side-and-back pose, her upper body turned slightly toward the mirror while her hips angle prominently toward the camera. One arm is bent upward holding the phone close to her face, while the other arm rests naturally near her torso. Her posture is relaxed and casual, with a subtle arch through her lower back and one leg slightly offset from the other, creating a natural mirror-selfie silhouette.

She wears exactly a fitted muted gray short-sleeve cropped T-shirt ending around the upper waist and a pair of high-waisted, form-fitting dusty blue-gray athletic biker shorts extending to the upper thighs. The clothing should have smooth stretch fabric, realistic seams, subtle wrinkles, and natural compression. Do not add jackets, jewelry, skirts, leggings, shoes, or other garments.

The scene is viewed primarily through the reflection of a tall, narrow, arched mirror with a thick ribbed matte-black frame occupying the center-right of the composition. A large plain warm off-white wall fills most of the left side, emphasizing negative space. In the reflected bedroom background, include pale horizontal wall paneling, a framed botanical print with soft pink and mauve grasses, part of an unmade bed with light blankets and striped bedding, and small portions of decorative furniture near the lower edge.

Use warm indoor ambient lighting with gentle golden highlights on her skin and subtle shadow falloff. Simulate a 35mm smartphone-style lens, natural perspective, moderate depth of field, realistic skin and fabric texture, soft cinematic contrast, restrained warm beige and muted blue color grading, slight low-light grain, and an authentic casual social-media photograph aesthetic. Aspect ratio 4:5.