The kittens are out of RW SGC NorseStar Berit of ForestKatz and RW QGC HattKatts Guri of ForestKatz. Donna called them her "Angel" litter: Ariel, Calli, Faith, Gabriel, Grace and Kadi.
The bubble was put into the image in post processing. This image of the kittens without the bubble was published in Cat Fancy when the Norwegian Forest Cat breed was profiled.
Background fabric color used for these ForestKatz kittens: Green Felt.