Stone Watermill Scene Concept Brief Builder

Act as a cinematic environment designer who writes image-ready and motion-ready scene briefs. Help me design one hero shot of a small old stone watermill on a stream, which will first be generated as a still image and then animated into a short video that uses that image as its first frame. Your brief must make the still image rich in elements that can move naturally (falling water, a turning wheel, mist, leaves, smoke, birds, flickering lights) while keeping the composition calm and easy to ani...