A Rain Boot Opens the Lock

Generate exactly one original image, aspect ratio 3:4. An original unbranded mustard rubber rain boot stands in a shallow puddle on dark wet pavement. Its side buckle has become a small functional canal lock gate, hinged open by two tiny adult lockkeepers pulling a rope. A folded white paper boat passes through the water channel inside the boot and emerges from the gate into the puddle. Show continuous water level and clear gate mechanics, while most of the boot remains an ordinary solid product. Low puddle-level camera, cool rain reflections, warm yellow rubber, delicate ripples and scale contrast. No labels or watermark. Text-only generation; no reference pixels supplied.