I'll take the fire for this one but i actually do like the artsy photo (being an art student)
it has nothing to do with her age, or the media or anything. objectively speaking from an artistic point of view the shot is very well composed and balanced. it reminds me of the art the old masters did from the renisannce period. I'm sure if someone painted this hundreds of years ago it would be in a museum!
though i can totally understand why this image is so controversal today. but art has always been controversal though. take for instance this piece
Cupid and his mom Venus getting sexually intimate. wrong on so many levels, but it's a wonderful piece of art.
so i can say that yes i do agree that she is too young to be posing in such a manner, but i can honestly say that the final product is actually quite beautiful.