two kittens playing on a red floor

two kittens playing on a red floor. They are both mostly white, one with light gray markings, and the other with a dark gray tail and a small dark gray patch on its back. The kittens wrestle, standing on their hind legs and batting at each other. One kitten jumps on the other's back. A third cat watches from inside a dark carrier in the background. The floor is red and appears to be linoleum or painted. There is a white wall to the left and a corner of a white wall in the background.