#7 The dragons painted on the wall are Chinese Water Dragons just like Sisu from Raya and the Last Dragon.
#8 The red panda statutes are named Bart and Lisa, a nod to The Simpsons.
#9 The Rainbow Unicorn sticker from Inside Out.
#10 In Mei's introduction in the film the teen can be seen walking through the city streets and there are a number of shop signs visible as she does so, one shop sign is for Bao dumplings, a clear nod to the short film.
#11 When Mei is walking through the school a boy is wearing a t-shirt with a monster from Monsters Inc. on it.
#12 In the science classroom, you can see a skeleton that is the same shape as Kevin from Up on the right by the chalkboard.