How does Sei Shonagon use imagery in The Pillow Book of Sei Shionagon, Translated [from the Japanese] and Edited by Ivan Morris?

Imagery:

"Despite the bright sun, dew was still dripping from the chrysanthemums in the garden. On the bamboo fences and criss-cross hedges I saw tatters of spider webs; and where the threads were broken the raindrops hung on them like strings of white pearls. I was greatly moved and delighted."

"The fly should have been included in my list of hateful things; for such an odious creature does not belong with ordinary insects. It settles on everything, and even alights on one's face with its clammy feet. I am sorry that anyone should have been named after it."