It's so lame to use Anastasia, anyone who cares enough about history to read a historical novel knows who she is and what she looks like. The other picture is wrong, too. If they were going for a random girl to represent "Juliet" why not choose an 1860's era girl? Hoop skirt, low neckline, flat hair on top and ringlets to the side? Both Anastasia and the other girl are obviously from another time fashion-wise. Why did they do it? They need new people to design covers. (like us!)
About Tatiana on the cover of Rasputin's daughter, that's wrong too since the picture is obviously supposed to represent the main character. I don't know why they did such a thing. It only confuses people who don't know any better.