I have done a couple of these. Start with what color you want then start picking out going from light to dark, it works really good (although you can't always do this) to have some of the colors in fabric 3 in fabric 2. Do you have the book? She does through (if I am remembering correctly) how to choose fabrics and what works and what doesn't. Know that you will probably need to go to more than 1 QS to find the fabrics. Unfortunately I gave mine away and of course don't have pictures.
If you don't have the book, it really is a good investment it has several good quilts in it.