Sewbiz - I think some of your fabrics are okay, but some of them (to me) read as a different color. Like the one with the darker butterflies ... to me, from a distance, I see the dark color of the butterflies before I see the background color.
I've marked the ones "OK" that I would consider to be a neutral. I put "RAC" on the ones that, to me, read as a different color. And I put "??" on ones that, depending on the project, could go either way.
All of this is, of course, just my own opinion based on how I'd use the different fabrics.
Luckily we all see fabrics differently, otherwise all of our quilts would be the same. LOL!
<3
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