How does Shannon Hale use imagery in Princess Academy?

Imagery:

"She looked from the bald head of the miri flower down to Peder's straw-colored hair and wanted something that she was afraid to speak" (Chapter 1, pg. 16.)

"They could sit in the shade of their large house and sip sweet drinks, learn to play lowlander instruments, and stare at the flowers" (Chapter 8, pg. 99.)