The key statement that highlights the differences between the Haiku by Buson and the poem - "To Autumn" by Wiliam Blake is:"Autumn, laden with fruit, and stained With the blood of the grape"
<h3>Why is the sentence the key difference? </h3>
The sentence by Blake references Fruits hence modifying the tone of the poem by communicating harvest and life in contrast to the Haiku which seems to communicate dreariness and gloom.