I got 10 out of 10 correct without looking at the features around the face. It's easy to spot the fake one by wrinkles going the wrong way, or obvious artifacts like incomplete earrings. It's close to being impossible for me to tell, though, if they fixed those issues.
My method was more intuitive than that. There's more detail on the real faces, the fake ones look slightly brushed over. If it wasn't an A/B test, I'd fall for the fakes every time, however.
