Love your colors collections, Feathers-N-Fur.
I usually ruffle some feathers every year when I say this, but will risk it again: Fabric with white backgrounds read as white. In your quilt, they will look like your neutrals. Everyone can do as they like with their fabric selections, but if you want the distinction of colors as Bonnie intended, you need to be sure your colors are true. This is one of the biggest things I've learned from Bonnie Hunter over the years.