Is this paragraph a narrative strategy in The Adventures of Tom Sawyer?

I am learning about narrative strategies and I think that characterization is a narrative strategy. I think this paragraph from chapter 17 is a narrative strategy? I am trying to find more examples of narrative strategy in The Adventures of Tom Sawyer.

“First one and then another pair of eyes followed the minister's, and then almost with one impulse the congregation rose and stared while the three dead boys came marching up the aisle, Tom in the lead, Joe next, and Huck, a ruin of drooping rags, sneaking sheepishly in the rear!”