Use the uploaded seahorse family image as the exact locked identity, count, relative sizes, forma...

Use the uploaded seahorse family image as the exact locked identity, count, relative sizes, formation and material reference. Create one uninterrupted eight-second seamless anatomical motion loop on the existing pure black #000000 matte with a completely fixed camera. Keep all three complete seahorses, every snout, dorsal fin and curled tail fully visible inside the central 70 percent of frame. The family remains centered and together. Begin with tiny fin motion already active. Animate rapid but restrained transparent dorsal-fin flutter, small pectoral-fin corrections, gentle gill breathing and slightly different vertical body bobs for each seahorse. One smaller seahorse makes a subtle eight-degree attentive head turn while the other two adjust their curled tails by a few degrees; the family then settles back into the exact original arrangement without collision or role swapping. Preserve exactly three individuals, their size hierarchy, bronze-cyan markings, lighting and premium painted 2.5D texture. During the final 1.2 seconds return continuously to the exact opening poses, fin phases and apparent velocity for direct seamless looping. NEGATIVE PROMPT: No new background, seagrass, coral, water scenery, particles, bubbles, camera movement, zoom, cut, full-group travel, static-card slide, fourth seahorse, missing seahorse, duplicated body, size swap, position swap, collision, merged tails, detached fin, straightened tail, horse-like legs, cute cartoon face, fast spinning, panic, opacity fade, morphing, blur, crossfade, ghost family, freeze, text, logo, UI, reels or visible loop reset.