Narrative Outpainting: expand the frame and continue the story

Use case: story-aware image outpainting
Input image: the attached image, the image to extend
Target aspect ratio: 16:9 landscape
Expansion direction: left and right
Story elements to reveal: a distant storm and a winding river

Primary request: Expand the attached image toward left and right into 16:9 landscape, revealing a distant storm and a winding river as a natural continuation of the existing moment.

Original preservation: Keep the original image content, subjects, faces, pose, crop relationships, color, sharpness, and internal composition unchanged wherever possible.

World continuation: Extend architecture, landscape, horizon, surfaces, patterns, weather, crowd flow, and object trajectories using the same perspective, scale, depth, and spatial logic.

Narrative continuity: Make the new elements causally and emotionally connected to the visible action. Use visual clues already present in the source and avoid introducing a competing focal point.

Image matching: Continue lighting direction, shadows, reflections, atmospheric perspective, depth of field, motion blur, grain, lens distortion, and edge detail seamlessly across the former border.

Constraints: Avoid mirrored or repeated content, stretched textures, duplicated people, abrupt seams, perspective drift, scale errors, invented text, or unrelated spectacle. Add no frame or watermark.

Output: Return only one seamless expanded image in 16:9 landscape.