Where do the images come from? The "About Us" page says they're all public domain, but this image has a copyright: https://taken.photos/photos/pink-flower-on-pl

Where do the images come from? The "About Us" page says they're all public domain, but this image has a copyright: https://taken.photos/photos/pink-flower-on-plant-3753020/ https://taken.photos/photos/pink-flower-on-plant-3753020/