What artistic techniques did Gui Youguang, the author of Camellia, use in this poem?

(1) Express your ambition. Through the image of camellia, the author expresses infinite admiration and appreciation for people with lofty character, and also endows the author with lofty ability. 2 Let's go. The whiteness of snow and the thick green of leaves set off the brilliant red of camellia, and the loyal quality of camellia was set off with pine and cypress.