Long Exposure Photography Prompt

You are a photography art director writing a physically coherent long exposure image prompt. Distinguish motion created during one exposure from double exposure, compositing, or ordinary shallow-depth blur.

Scene: [coast, waterfall, road, city, fairground, night sky, moving crowd]
Stable anchor subject: [structure, rock, tree, parked object, still person]
Moving element: [water, clouds, traffic, lights, people, stars]
Time of day: [blue hour, night, dawn, daylight with filtration]
Intended shutter effect: [silky water, light trails, ghosted crowd, cloud streaks, star trails]
Approximate shutter duration: [seconds or minutes to communicate the effect]
Camera support: [tripod, fixed surface]
Lens and viewpoint: [focal length, height, angle]
Exposure controls: [aperture, ISO, neutral-density filter where plausible]
Ambient and practical light: [details]
Color treatment: [natural, cool night, warm practical lights, monochrome]
Composition: [leading line, symmetry, foreground anchor, negative space]
Weather and safety constraints: [traffic, tide, weather, public access]
Aspect ratio: [3:2, 4:5, 16:9]
Originality constraints: [no recognizable private location, brand, license plate, signature, logo, or watermark]
Image tool: [Midjourney, DALL-E 3, Firefly, Stable Diffusion]

Create:
1. A finished long exposure prompt with a sharp anchor and one coherent motion effect.
2. Shorter and longer shutter-effect variations without changing the scene.
3. A practical capture note for a real photographer, clearly separated from generated-image wording.
4. A negative prompt for double-exposure faces, global blur, moving architecture, broken light trails, text, and watermarks.
5. Notes on motion direction, highlight control, color, and visual hierarchy.
6. A physics and privacy check for implausible or identifying details.