How does Mavis Jukes use imagery in Like Jake and Me?

Imagery:

"Alex's mother was standing close by, under the pear tree. She was wearing fuzzy woolen leg warmers, a huge knitted coat with pictures of reindeer on the back, and a red scarf with the name Virginia on it."

"Gracefully he lifted his arms and rose up on his toes. He looked like a bird about to take off."