Where do the following couplets and poems come from?

Lotus on four sides and willow on three sides, one city with mountains and rivers and half a city with lakes (Jiangxi gifted scholar, Daming Lake, Jin 'an City, Liu)

A yellow river, like a belt, runs through the heavens and the earth, leading to the Milky Way (Yuan Mei, a poet in the Qing Dynasty, described the golden belt of the Yellow River in his poem "Climbing Mount Tai")

Castle Peak is fortunate to bury loyal bones, while white iron casts innocent courtiers (Qin Gui kneels behind him on Yue Fei's tomb like a cloud).

On the first floor, the qi of three Chu is extracted, and the clouds and cranes are empty;

The confluence of the two rivers and the hundred rivers tribes is endless in ancient and modern times (Hubei Yellow Crane Tower couplet)