Rising elbow

The prompt

Medium two-shot in a dim underground parking garage, a middle-aged South Asian woman self-defense instructor drives a single upward elbow strike as a man in a hoodie steps in close and grabs her shoulders, cinematic thriller, handheld camera with a snap zoom on impact. 0–2s: he lunges in from the right and grabs her shoulders. 2–4s: she drops her weight, bending her knees, hands rising near her face. 4–6s: she drives up from her legs and her right elbow rises vertically, stopping at his chin as his head snaps back. 6–8s: he staggers away and she steps back into a guarded stance, breathing hard. Throughout: both figures visible from the knees up, flickering fluorescent tubes, concrete pillars, green-grey light.