I did a google search for images of her and have been toggling back and forth for about 5 minutes....it sure looks like her. I'm sure there are lots of women that try to emulate her looks, so who knows.
I don't know whether those pictures are of Donatella Versace or not, but it isn't the face that would make me wonder - it is the outfit. Donatella has been a scary example of plastic surgery and excessive tanning gone awry for quite some time, but I've never seen her wear something so shapeless.