The metadata to create the image (closely, if not exactly) is contained in the .png headers, technically the EXIF data. If you download the image and drop it into the “PNG Info” tab of A1111 it will give you the prompt, model, seed and config and you can hit ‘send to txt2img’, but it’s unlikely to work exactly right on the first go. Take a look in the EXIF info at the bottom for models and extensions you’ll need to download / install.

Pablo and dalcefo’s work are clear in this image. Thanks to Dynamic Thresholding that is doing interesting things to my images.