Dancer Tracked by Virtual Ink Strokes

Create a 15-second, 16:9 dance visual. An adult dancer uses a flexible, ink-free prop brush in an empty studio with a non-slip floor; all ink is a virtual post-production effect. At 0–2 seconds, a side step and sweep creates the first long arc. At 2–4, alternating arm swings form two crossing trails. At 4–6, the dancer drops and rises while drawing a vertical ink line. At 6–8, continuous turning steps form an open ring. At 8–10, three forward steps add one arc layer per step. At 10–12, a broad turn completes the outer ring. At 12–13.5, pulling the brush handle backward leaves a long tail. At 13.5–15, the dancer stops a safe distance in front of the camera as the ink spreads to a full-black ending. A low 24mm tracking camera gradually retreats. Ink arcs must not touch the face, wrap around joints, or obscure a whole limb before 13.5 seconds. No real splashed ink, rigid weapon-like brush, collision, slip, bodily disassembly, or dangerous rush at the camera.