I know what you mean about winging it! This quilt was an exercise in winging it! It started out with a Seusical black and red dot plus the Seuss fabric and ended up as this! Oh, it also went through an entirely pink phase, which was about exasperation, LOL.
I thought a big block 9-patch would be quick and easy. This quilt is for someone who doesn't really understand "quilts," so I didn't want to expend the kind of time I might normally expend. But the limitation the "big block" set up for me made my life much harder! LOL, figures. It's all about the learning experience.