How does P.G. Wodehouse use imagery in The Most of P.G. Wodehouse?

Imagery:

"Spring, coming to London in a burst of golden sunshine, was calling imperiously to all young men to rejoice in their youth, to put on their new herringbone-pattern lounge suits and go out and give the populace an eyeful; and this I had been prevented from doing by the fact that my new suit had mysteriously disappeared. After a separation on twenty-four hours, I had just met it in Piccadilly with Ukridge inside it."

"Lady Constance was a beautiful woman, but there were times when the charm of her face was marred by a rather curious expression; and from nursery days onward his Lordship had learned that this expression meant trouble. She was wearing it now. Pig-hoo-o-o-o-ey!"