What's the difference between the image of "a dead vine and an old tree fainting crow" in the courtyard sand Qiu Si and the image of "a clear sky crane" in autumn poems?

The crane "on the cloud" in autumn poems is vigorous and powerful, which breaks through the cold atmosphere of autumn and shows optimistic, cheerful, heroic and lofty artistic conception. In Qiu Si, images such as a dead vine and a faint crow describe the chill of autumn and show the author's sadness of homesickness in autumn. ?

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