Just fantastic photos, Brad. You're right that a clump is what it's all about. Even a relatively plain Iris is pretty in a clump -- and a stunning Iris makes it a traffic-stopping thing of beauty.
I agree Tom -- Pretty Witch is gorgeous. My pick of these was Fashionably Late -- followed closely by Super Hero and Secret Recipe. Not to mention Chestnuts Roasting. And No Place Like Home. Omigosh -- they're all amazing.