Still don't like the floral fabric. Why don't you use it fot the backing? Your not getting enough value in you blocks. My mantra that I learned from a world class instructor..." Colour gets all the credit but value does all the work".
I invested in those red and green windows they sell at the quilt shops. When I doubt myself, I look through these.it has improved my colour choices two fold. Just trying to be helpful since you asked.