Those are some really pretty caladiums, Lin. I haven't gone through my old caladium photos in a long time. Too many bad pics!
I used to have a border of just one color. It would be Gingerland, Miss Muffet, or some red. A few years ago, when the drought hit, I started growing them in pots. It was easier to keep them watered. Once I started digging the bulbs out of the pots to store, I liked mixing them up around the tree roots. Changes every spring!