How does the author use metaphors on page 26 to describe Liesels new foster mother?

Rosa's description:

"On the other was the squat shape of Rosa Hubermann, who looked like a small wardrobe with a coat thrown over it. There was a distinct waddle to her walk. Almost cute, if it wasn't for her face, which was like creased-up cardboard and annoyed, as if she were merely tolerating all of it"

Rosa is described as short, wide, waddling (because of her weight?)... and kind of cute but annoyed. She wasn't really the happy foster mother.... only tolerating it. Likely, she tolerated it because of Hans.