In this excerpt, the rhetorical technique that the passage best exemplify is:
A. Parallelism
Parallelism is when there is grammar equilibrium in two or more sentences, we can see such a case in these two sentences: They picked handfuls of daisies. They picked bunches of daffodils. On the one hand, the subject is the same They, and on the other the Tense is also the same.
We find no evidence of exaggeration of any type, nor there is satire or irony.