I don't know... people seem to either have a knack for spotting AI or they don't. Many people fall for it and I wonder how they can't see it whereas on the other end of the scale the people who can't tell the difference wonder how others can tell.
It's hard to describe but she looks like she has a computer game character face to me. Even the boobs look generated as they tend to be perfectly rounded or oval in an unrealistic way like this.