Use the attached photo as the reference for the Subject. Keep her face, facial features, skin tone, hair, bob cut and body type exactly as shown, without retouching that changes who she is. If no photo is attached, use the Subject described below.
Show the Subject taking a mirror selfie in the Setting, holding a smartphone naturally so it partially covers the face. Compose it like an authentic casual bedroom snapshot, with the mirror edges and a hint of the room visible around her. Use the Lighting to create a sharp foreground flash, bright skin highlights, hard shadows and a darker room behind her. Preserve realistic mirror reflections, natural proportions and believable phone perspective. Add subtle smartphone-camera grain and slight exposure falloff toward the edges. Keep the expression relaxed and candid, with an unpolished everyday atmosphere rather than a studio portrait.
Use these details:
Subject: "woman in her mid-20s with jet black hair in a neat bob cut"
Setting: "dimly lit bedroom with an unmade bed and soft clutter in the background"
Lighting: "direct on-camera flash in a dark room"