shazziny, welcome! I love the color palette you're working with. Like you, my favorite part of quilting is probably picking the fabrics. So many endless possibilities to mix and match!
Teen, that Fabric A is gorgeous. Although, I think you may be running into the same thing I am with Fabric B and C coming across more tone-on-tone than multi-colored. I'm finding it hard to pick out a really busy multi-color print because it feels like it's going to compete and draw attention away from the Fabric A. I've got multiple options I'd be fine with for all my fabrics except C, I just can't find one I'm 100% happy with the look of (I guess because we don't know exactly how much it's supposed to stand out/compete with A)