a bouquet of foreshadowing
is what Jade's room is. For real.
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You have a profound zeal for marvelous and fantastical FAUNA OF AN ANTHROPOMORPHOLOGICAL PERSUASION. Hot damn that was a word with a lot of letters. I had to type it 3 times before I did it right.
This is obvious foreshadowing of Jade's "Dogtier" form, but it doesn't end there. Jade has several posters on her wall that depict different sorts of anthropomorphic animals, but one in particular (right side of this panel) is of a green-hued dog with hair and perfectly round glasses.
On her back wall is a colorful poster featuring a witch on a broomstick--foreshadowing her role as a Witch of Space, and even slightly resembling one of the panels that shows her right after she goes God Tier. It ALSO could be referencing one of the various roles that Jade enacts from the Wizard of Oz: the Wicked Witch of the East.
She also has a Sweet Bro and Hella Jeff Poster.