I think she's attractive but a bit overrated as far as being the greatest thing to ever walk the earth like some guys seem to think of her. Then again, a lot of celebrities tend look for the most part like everyday girls when you see them without the benefit of armies of makeup artists, photoshopping etc.
Don't get me wrong, there's nothing at all wrong with how she looks without makeup. But it strips away all of the ridiculous glamour and expectations of the otherworldly, unobtainable beauty that gets pushed:
Etc, etc. To be honest, I prefer the first photo.
Add: Kudos to her for being willing to be photographed like that in her completely natural state. Very very few celebrities are willing to do that in any way, shape, or form.