I know in every portrait the subject is supposed to be perfectly perpendicular to the horizon....
but I like her bit of a lean in the original. her hips look straight to me, its just shes tilting her torso a bit. correcting the torso tilt pushes her hips out of alignment with the frame.
face and eyes are a bit overdone for my taste. personally, I say dial back the barbie just smidge to match the rest of her.