Fresh mainly refers to the simple and innovative language. For example, Du Fu's quatrains: "Two orioles sing green willows, and a row of egrets go up to the sky. The window contains snow in Xiling, and the Dongwu Wan Li boat is moored at the door." The language style is often categorical and broken, such as Bai Juyi's poems.
Conciseness mainly refers to concise language and rich meaning. For example, Du Fu's a night abroad: "a light wind is rippling at the grassy shore, through the night, to my motionless tall mast, the stars lean down from open space, and the moon comes running up the river, if only my art might bring me fame, and free my sick old age from office!, flitting, flitting, what am I like, a gull in heaven and earth." The eight sentences are all neatly opposed, all with real words and dense images.
Often, it is not directly narrated, but confided in twists and turns, and the words here are meant to be another, or cited but not sent, or wanted to be said to rest, so that readers can appreciate it. For example, Du Mu's quatrains and Li Qingzhao's later words.
Gorgeousness mainly refers to rich words, gorgeous literary talent and fantastic feelings. For example, "Spring outing in Qiantang Lake": "How many early birds compete for warm trees, who is new?" It's true, profound and approachable when it's all sketched, but plain doesn't mean simple and shabby. It's a return to the original language, which reflects the writer's real kung fu. For example, Tao Yuanming's poems and Li Yu's poems.
Obscurity mainly refers to the language that is difficult, obscure and difficult to understand. For example, some obscure poems by Li Shangyin are strange.