super cute! I love the grumpy little face the kittens make when you pick them up, and that you get to hear them purr when you put them to bed. are you supposed to be able to help them sleep on the pillow as well as the cat bed?
one little thing: it looks like you’re doing your Y-sort based on the center of the sprite instead of at the bottom, which makes things kinda pop through each other when you don’t expect. the layering will look a little more natural if you switch that :)