First of all conratulations to your DGD for making such a beautiful quilt for her first one. It looks like she di an excellent job!
I have that pattern and was just looking at it again today trying to figure out what i needed yet to be able to start making it. This past spring I found some beautiful 100% cotton dress fabric in a couple large prints and some smaller ones in torquoise, whites and blacks and browns. It was on sale and beautiful and 60inches wide. I bought one large print and a couple small ones. I still need some more prints to go with it. So it won't look exactly like your DGD's but hopefully it will be pretty. My 11 year old DGD looks at quilt patterns and ideas that I've collected and then takes a post-it not and writes her name on it so that I'll make it for her. She put a big#1 on this patter so I suppose I'll have to give it to her. Maybe I should let her help me make it.