Imagine all that furriness being stripped away~
Exotic markings, fur or scales, powerful claws, those jaws and teeth, those sometimes supernatural powers... All melted off, leaving something soft, simple, weaker.
All those years of furry pride pulled off you~

That's what Rebecca had to learn to deal with as her years of growing into a powerful, monsterous queen were suddenly erased, leaving something much paler and smaller in its wake.