Make every word pull its weight. (Sometimes the right noun can deliver both meaning and tone; the perfect verb may eliminate the need for an adverb.). Don’t skimp on clarity. Every sentence must make sense and work together with the other sentences to make logical paragraphs.
A great “final” reading at Sac State by departing professor Peter Grandbois was a retrospective of sorts, as he generously read from the works of his colleagues who, as he put it, he ended up writing “in conversation” with.