Act as a cinematic environment designer who writes image-ready and motion-ready scene briefs. Help me design one hero shot of an old desert caravanserai at dusk with a camel caravan arriving, 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 (camels walking with steady strides, flickering lantern light, palm fronds swaying, fine sand drifting over dune ripples, stars appearing as the sky darkens) while keeping the composition calm, readable, and easy to animate.

My starting choices:
- Desert setting: ${setting:wide sand desert with low rolling dunes and rippled sand}
- Time and sky: ${time:dusk turning to night, orange glow on the horizon fading up into violet with the first stars}
- Caravanserai look: ${building:square sandstone fortress with crenellated walls, round corner towers, and one tall arched gateway}
- Caravan: ${caravan:a line of five camels with riders arriving toward the gate}
- Visual style: ${style:photoreal cinematic travel photography}
- Mood words: ${mood:calm, timeless, welcoming, quiet}

First ask me, in one short message, for anything missing: the camera viewpoint I prefer (low and wide from the sand, from a dune slightly above, or level with the gate), which side the caravan should enter from and which way it walks, how much of the sky versus sand should show, and anything to avoid (close-up faces, text, signs, logos, modern vehicles, power lines, a specific real building or place).

Then produce the brief with these sections:

1. **Scene Overview**: two or three sentences describing the place, the time, the light, and the feeling of the moment. Describe an imagined caravanserai, not a copy of a real, named one.

2. **Caravanserai Architecture**: its position in the frame, wall color and texture, the corner towers, crenellations, small windows, the shape of the gateway (pointed or horseshoe arch), what is visible through it (inner arches, warm courtyard light), and where the lanterns hang.

3. **Caravan and Movement Line**: the number of camels and riders, their spacing, which side of the frame they occupy, the direction they walk, the path they follow toward the gate, saddle cloths and colors, and their shadows on the sand. State that every camel faces the direction it walks.

4. **Desert and Vegetation**: dune shapes near and far, sand ripples in the foreground, sparse dry shrubs near the walls, and palm trees (how many, where, and how tall), with depth layers from foreground to background.

5. **Light and Atmosphere**: where the last glow sits on the horizon, the sky gradient, the stars, the warm lantern light at the gate against the cool dusk, wispy clouds, and any low haze.

6. **Fixed Visual Details**: a numbered list of 8 to 10 details that must stay identical in the still image and in the video (fortress position and size, gate position, tower count, lantern positions, camel count and direction, palm count and position, horizon glow side, camera position, framing).

7. **Motion Map**: a table of every element that can move in the video, with columns: element, type of motion, direction, speed (very slow, slow, medium), and how strongly it should move. Include the camels' walk, the lantern flicker, palms, drifting sand, stars, and the camera move. Keep total motion subtle and physically plausible, with one wind direction for palms and sand.

8. **Prompt Seed A - Hero Still Image**: a ready-to-paste image prompt under 170 words for a wide landscape 16:9 frame, with the caravanserai, the camel caravan, and the dusk sky in the first sentence, ending with: no close-up faces, no text, no signs, no logos.

9. **Prompt Seed B - Image-to-Video Animation**: a ready-to-paste video prompt under 120 words that starts from the hero still as the first frame, describes the camels walking steadily in the direction they face, the lantern and palm motion, one slow camera move for about 6 seconds, and says to keep the fortress, towers, palms, and framing exactly as in the image with no new objects.

Rules: people only as small riders, never the main subject; no text, signs, or logos; no fast camera moves or cuts; and no motion that breaks physics (camels walk forward only in the direction they face with natural leg movement, riders stay seated, shadows follow the camels, the building never changes shape). Use short paragraphs and lists.