not enough proof but if they don't provide a real photo, i think we can conclude already of them being fraud. its pretty clear the photo manipulation here. editing the photos will help them avoid getting caught when we search for similar image. but asking them to provide unedited photo will really be a challenge.
marking them with red trust will force them to do so. after all altering the images is enough evidence that they are up to something.
are they just using paint on this?