5-second dynamic anime boxing scene. Preserve the starting composition, character, outfit, proportions, gym and lighting. 0-2s: The fighter tightens her guard and focuses intensely on the center of the punching bag, her eyebrows furrowed and jaw clenched. 2-5s: She explosively drives forward and delivers one powerful straight punch into the punching bag. The bag swings backward from the impact while her ponytail and clothing react naturally to the sudden movement. She immediately maintains her balanced boxing stance. Strong impact, controlled motion, no scene cuts, no exaggerated deformation, no text.
