I have never done one of these. Is there fabric kits that can be bought anywhere or do you pick your own fabric? I'm really horrible at picking fabric.
Some quilt shops have pulled colors that will work with the paint chips. Mostly you're on your own. I was a little nervous with my first Bonnie mystery but it turned out great. Get the paint chips and do your best to match them. Make a smaller size. My first one was one quarter the size of the pattern. As suggested, you can do a single fabric of each color. It's fun to join in and see what others are doing.