More to explore:
Ravelry: Wendy Blanket pattern by Wendy de Haas
kaleidoscope granny squares
Got the blues. Beautiful granny square blues
beautiful and free pattern on Ravelry
Gorgeous crochet blanket
This is an interesting way to do granny squares. This makes it all about the colors.
No pattern listed, but gorgeous crochet pattern.
granny square tutorial part 5: joining squares of different sizes
Harujion Design: Free pattern for a Flower Garden Granny Square
Ravelry: Glindale's Wendy blanket