Photorealistic live-action macro video, vertical 9:16, 1080×...

Prompt

Photorealistic live-action macro video, vertical 9:16, 1080×1920, 30 fps, exactly 10 seconds. Locked-off tripod, front-left view at 25° above, 50 mm macro lens, f/8, bright soft 6500 K studio lighting, seamless white background. A handmade miniature DIY fish ladder model, identical to the reference image: a grey cardboard dam wall on the left and a zigzag staircase of stepped cardboard pools filled with glossy blue water. Each pool has corrugated cardboard walls, wooden popsicle-stick rails and small painted cardboard fish. A five-fin white plastic paddle drum sits inside one pool, mounted on a horizontal steel shaft passing through a clear side plate. A white gear connects the shaft to a small brushed-silver 3V DC motor. A silver 2×AA battery holder, grey toggle switch with red ON labels and green three-way terminal block are mounted on the front control panel. Red and black wires are neatly connected from battery to switch, terminal block and motor. No LEDs or glowing lights. **Action:** Initially, the switch is OFF, the paddle drum is stationary and water flows gently downward through the pool notches. A realistic right index finger enters from the bottom-right and presses the grey toggle switch into ON. The finger withdraws. Immediately, the motor starts and smoothly accelerates the gear, shaft and paddle drum to one revolution every two seconds. Viewed from the motor side, the drum rotates CLOCKWISE. Its fins scoop water, lift it and release it in a controlled arc into the pool below. The water then flows naturally downward through each connecting notch, creating continuous cascading movement through the entire fish ladder and returning to the bottom channel. All water follows realistic gravity-driven motion: no upward spraying, floating droplets or skipped pools. Fish gently bob with the ripples but remain inside their pools. The drum rotates smoothly without wobbling, reversing or slipping. Gears remain properly meshed. The dam, wooden rails, motor, bracket and wiring remain stationary. **Final shot:** The finger is completely withdrawn, the switch remains ON, and the paddle drum continues rotating steadily while water cascades naturally through all pools. Maintain realistic water physics, accurate mechanical connections and consistent model geometry throughout. No cuts, morphing, detached parts or artificial lighting effects.