What each part of the prompt does
- Reflection first
- Starting on the lake doubles the aurora and gives the tilt a clear direction, from water up to sky.
- Slow sway, not flicker
- Real aurora moves gently. "Sway and pulse slowly" keeps the model from strobing the colours, which looks like a screen fault.
- Peaks in silhouette
- Dark mountains and pines frame the bottom of the shot and show scale, while staying black so the colours stand out.
- No moon
- Without moonlight the sky stays deep black and the stars stay sharp, which is what makes the green and violet glow.
Variations to try
Same idea, one thing changed. These have no clip yet.
Wide pan along the lake Green and violet northern lights ripple across a starry sky above a still mountain lake. Motion: the aurora curtains sway slowly, mirrored on the water. Camera: a slow pan from left to right along the shore. Setting and light: snow-capped peaks in silhouette, pines on the shore, no moon. Style: night sky photography look, sharp stars, deep blacks. Sound: a soft wind across the water. Duration: 5 seconds, 16:9.
Frozen lake with a cabin Green northern lights sway across a starry sky above a frozen lake with a small wooden cabin on the shore, one warm window lit. Motion: the aurora pulses slowly, faint snow blows across the ice. Camera: a slow tilt up from the cabin to the sky. Setting and light: deep snow, dark pines, no moon. Style: night sky photography look, sharp stars. Sound: wind over snow. Duration: 5 seconds, vertical 9:16.
If the result isn't right
- If the stars streak or drift, add "stars fixed in place" to the style line.
- Keep the colours to green and violet. Asking for every colour at once tends to produce a rainbow that looks painted.
- For a landscape version, use the pan variation and set the ratio to 16:9.