How does the idiosyncratic use of techniques such as point of view, focusing on the characters’ thoughts, etc. enhance the themes in George Saunders’ stories?

How does the idiosyncratic use of techniques such as point of view, focusing on the characters’ thoughts, etc. enhance the themes in George Saunders’ stories? You may write about up to three stories.
10th of December: https://www.newyorker.com/magazine/2011/10/31/tenth-of-december (Links to an external site.)
Victory Lap: https://www.newyorker.com/magazine/2009/10/05/victory-lap (Links to an external site.)
Semplica Girl Diaries: https://www.newyorker.com/magazine/2012/10/15/the-semplica-girl-diaries (Links to an external site.)
Exhortation: https://www.prospectmagazine.co.uk/magazine/george-saunders-exhortation
The essay should be at least five pages.