I'm not 100% sure, but don't think so. That particular picture has been posted a number of times on the MousePad and other places over the last several years, and I don't recall anyone saying anything about it being a fake, or at least no one has offered strong evidence that it is. Considering how knowledgeable some fans are, if it were a fake I expect someone would have come up with proof after all this time, like the original foot picture or something. I'm pretty sure those are really Andy's feet
In any case, it's a classic picture of a classy lady. I'm glad to see it posted here. I just wish her feet and her face could all be in focus at the same time.