P.S.
I would recommend using a choosing a color pallete that you can let Rori grow with like pastels or neutral, and then buying accessories for the room that are age appropriate. I would recommend using a neutral color on the walls and then painting the trim in colors that compliment the theme that you want to go with. I recommend painting the trim only in complimenting color because you can easily and cheaply change it later if you want. There are many inexpensive and easy ideas out there now. There is self-sticking boarders and wall art that looks really great but something that you can take down later when she is tired of it or you need a change in the room. Accessorize with pillows, throws, wall art, lamps, ect. Decorative handles and knobs are a great way to add to the overall theme in the room. That way you can redecorate later on without putting a lot of money into redoing the whole room.