Thanks for all of the helpful comments about my design dilemma. It's amazing and wonderful to see what other people think of, and please, feel free to weigh in again! Following Debra and Nellie's idea I did stitch together the small yellow shape in the upper right to see what it looks like.
I was really intrigued by Liz and Fran's idea of using some of both, so here is what it would look like if some shapes were smooth and some irregular.
Fran's idea of a diptych certainly made me think. I'm not sure I'm ready for that many more blue blocks. But if this were a smaller piece it would be something to consider seriously. While I mull this over, I'm going to stitch together the background blue blocks. This is slow because I have to be systematic to make sure I don't confuse the placement. I take four blocks off the wall, carry them to the sewing machine, stitch and press in a certain order, and then carry them back. Since the design wall is clear across the room from the sewing machine, I tell myself this is good exercise.