Du Fu's poem "Ascending the Mountain" is well used in couplets "Infinite" and "Endless". How good is it?

This couplet embodies the typical characteristics of Kuizhou in autumn. The poet looked up at the endless rustling leaves and looked down at the endless rolling river. While writing about the scenery, he expressed his feelings affectionately. "Endless" and "inexhaustible" make "rustling" and "rolling" more vivid, which not only reminds people of the sound of falling trees and the surging Yangtze River, but also invisibly conveys the feeling that youth is fleeting: ambition is hard to pay. Through the gloomy and sad dialogue, it shows superb brushwork, and it does have the majestic momentum of "repairing the palace" and "pouring hundreds of rivers into the east". It is reasonable for predecessors to call it "the absolute step of the past and the present" and "the transformation in the sentence"