I would probably not have posted public pictures, but really this is no different than playing dress up IMO. I used to love dressing up and getting into all my mom's makeup when I was little. It might give a little one of that age the idea that she has to wear a LOT of makeup like that to look "pretty" though.
Of course it is different.
My daughter, when she had slumber parties here, playing dress up and make up etc. was all for fun and indeed learning about womanhood...all perfectly fine.
The difference is the public part.
The photo in the OP is but one of the many that this topless model has posted of her daughter like this. Which, IMO, is teaching the girl her greatest asset is her looks and sexuality. Not to mention providing free material for the pedofreaks.