Steam Rising from Mushroom Soup

Generate exactly one original image, a single finished food photograph with aspect ratio 4:5. Close three-quarter food photograph of a wide rustic stoneware cup of creamy mushroom soup, with three sautéed mushroom slices and one small thyme sprig floating near the edge. A torn piece of toasted sourdough rests on brown paper beside it. Deep moss-green linen background, warm low side-window light and a restrained curl of steam, richly detailed bread crust and mushroom gills, inviting autumn palette, no decorative clutter. Create an original composition; no collage, no text, no logos, no watermark.