Art on Kate's refrigerator similar to art at Santa Rosa

The cutout artwork on Kate's refrigerator is very similar to artwork seen on the walls of Santa Rosa Mental Health Institute in "The Beginning of the End." A couple items, including the orange butterfly and the ladybug are identical. The art looks like it would be in an kindergarten class. What does this art being in both places mean?

The last two screens are from "The Beginning of the End." These screens are originally from this older post.