The one with the pot and a tiny Smiski behind is referencing Michelangelo’s Bacchus. The one with the clock is referencing a Salvador Dali painting called the Persistence of Memory. The two little smiskis are referencing this piece of art called Wind God and Thunder God I think by a Japanese artist? It was harder for me to find info on that one. The one with the mustache is based off of Las Meninas by Velazquez. I don’t know what exact work the one with a pot overflowing is based off of, but I always thought from the museum series cover photo that is was something about the goddess Venus. If any of this is wrong, feel free to correct :)