I a bit easier a study, when it comes to selecting paint...the eldest son is an artist...he is home for a bit, and I said “Look at that room....Paint it” and he selected brilliant colors, and did a great job.... (It was a bedroom and he selected DARK TEAL for the wall with the window..and did a 5 inch dark teal border around the room (ceiling level)......and a very pale aqua color for the other three walls and all it cost me was paying for the paint, feeding the lad. (on second thought... ;-) LOL
It’s hard to get the right color! Some of them look great on the little samples, then they turn out to dark, bright or something else undesirable.
I’m sure she will love what you are doing! :)