Night Flash Fashion Portrait

Create a night flash fashion portrait. Subject: a woman standing beside a stone wall at night. Hair long and wavy. Wearing a dress, off-shoulder with a low open back. Carrying a bag on her right shoulder. necklace, bracelets. Action: standing with her back to the camera, torso twisted so she looks back over her right shoulder into the lens. Her left arm hangs down in front with the hand near her hip, her right arm holds the bag strap. Chin lowered slightly, soft closed-lip smile. Setting: background, a rough stone wall at night, dark and shadowed. Visual style: photoreal night flash film photography, warm grain, deep blacks. Composition: vertical, subject filling the frame from thigh up, angled across the frame. Lighting: hard direct flash from the front-left, bright falloff into black. Text inside: none. Constraints: never turn her body to face the camera, never cover the bare back, never brighten the background, never soften the hard flash. Output: 3:4 vertical.