Ultra-wide anime storyboard, hand-to-hand battle AI Image Prompt

Create a single ultra-wide cinematic anime storyboard sheet for a hand-to-hand battle scene, black-and-white visual reference art. Canvas: 21:9 horizontal canvas, clean white background, thin black outer border, divided into exactly 12 rectangular storyboard panels arranged in a 3-row by 4-column grid with narrow white gutters and thin black panel borders. Visual style: High-contrast monochrome ink art, characters mostly solid black silhouettes with minimal white rim highlights, sharp manga/anime speed lines, impact bursts, ink splatter, ground scrape marks, exaggerated cinematic camera angles. No grayscale shading, no color, no speech bubbles, no captions, no logos, no watermark. Characters: Two fighters only. Fighter A is {argument name="dominant fighter" default="a tall, extremely muscular male silhouette with spiky hair, sleeveless combat outfit, gloves, loose pants, and heavy boots"}. Fighter B is {argument name="opponent fighter" default="a smaller athletic male silhouette with spiky hair, fitted combat clothes, gloves, and boots"}. Keep both characters as dark silhouettes throughout. Panel layout and action beats: 1. Wide establishing standoff; 2. Dynamic low-angle charge; 3. Close-up impact punch; 4. Side view knockback; 5. Mid-shot kick impact; 6. Tight close combat; 7. Airborne launch; 8. Running punch chase; 9. Ground slam; 10. Downed opponent strike; 11. Final power punch; 12. Aftermath. Constraints: Use {argument name="aspect ratio" default="21:9"}; keep exactly 12 panels and exactly two fighters; make action read as one continuous brutal anime battle sequence; preserve clean storyboard-sheet composition; avoid extra characters, weapons, text, color, gore, or background scenery beyond speed lines and ground marks.