Please don't take this the wrong way - your quilt looks like one of mine before my daughters tell me a better way to arrange it. I was watching one of the Simply Quilts shows and a lady on it was making a scrappy quilt. She put the pieces into a paper bag and sewed the ones together as she pulled them out of the bag. Her quilt looked great! So I said to myself, I can do that! So I tried it. And my quilt just looked so bad, it did end up in the donation box. My daughters can take a bunch of flowers and put them in a vase and it looks like a beautiful arrangement. I take the same flowers and it looks like I just shoved them in the vase. So I have come to the conclusion I need help with laying out my quilt and various other artistic attempts.
There is so much I like about your quilt, I would take the blocks apart, rearrange them and I was willing to bet you will have a very attractive quilt.