Yup, The second one is in deep shade under my mango tree. I'm going on a Caladium hunt later to see if it's still there . . . and what color it is now!
On the Caladiums4Less site, he never lists "full sun" for any of his varieties, I noticed. They all say "sun tolerant". My feeling is, any caladium that will grow in full sun will do better and look nicer in some shade through the middle of the day, especially here in FL. Of course, in summer it often clouds over in the afternoons anyway, which helps them all without gardener input.
The last two I bought at Lowe's recently (which I think are White Wings) say "Full Sun" on the label. They were indeed sitting on a display table in full sun at the store, but since I brought them home, they've been in the shade of my little fig tree in the afternoons. I think they look much nicer now.
These two are again Carolyn Whorton, both in the same pot. First leaf is getting some sun, second not as much.