You could probably find a solid colored coverlet/quilt for the bed and then use a pretty patterned throw or just a queen or double size comforter/quilt/coverlet to put at the foot of her bed. And use different sized pillow covers/shams for the head of the bed in cute patterns. Many smaller sized cute bedding comes with euro shams, etc. and you could find some print that you like for that part of the bed.

Way fair has quite a few, including an adorable ballerina duvet set. All in pink and king size, just choose those options. Lots more stores I found just be googling pink king bedding.

We have a few options - how old is she?