The Kite Runner by Khaled Hosseini
His sentence: He was preparing his speech for the next day, flipping through a havoc of handwritten pages, making notes here and there with a pencil.
My thoughts: He was using parallel phrases to emphasize the tasks that were being completed. He used verbs ending in -ing to cause similar format which made the sentence more organized and powerful. Also, he used asyndeton, which is purposely removing conjunctions. That helps make the list more memorable.
My sentence: She was running through the park, laughing at the birds, singing a happy song.