Oh, I thought you meant they themselves were puzzle-like! I really love jigsaws, too, I will look into it! Charlie in his bed would be difficult, but a good challenge as well.
I also just noticed? The kittens are separated, the four girls are on the left and the two boys are on the right. AND, they go from smallest to largest... The bi-color up top and the orange legged tortie are the two smallest. Weird.