What do Powerful foreshadowing, vivid imagery, clever plot reversals mean?"The Most Dangerous Game" by Richard E. Connell

Certainly, Connell's "The Most Dangerous Game" is replete
with powerful foreshadowing, vivid imagery, and clever plot
reversals.

• Powerful
  foreshadowing = carefully laid hints that suggest and then greatly define
  further actions in the plot 

One example of
such foreshadowing that has a powerful effect is Whitney's consideration of the fear of
the prey and Rainsford's dismal, "Bah! They've no understanding."  This foreshadowing
hints at the dangerous game in which Rainsford will soon be engaged. Moreover--and this
is the "powerful foreshadowing"--iit suggests that Rainsford will soon understand only
too well what Whitney meant with his consideration of the jaguar's understand of "the
fear of pain and the fear of death." When he runs for his life, Connell
writes, "Rainsford knew now how an animal at bay
feels."

• Vivid imagery =
  language that appeals to any of the senses in a very clear and impressive
  manner

On the morning of the second day of the
horrifying hunt, Rainsford is confronted with a fateful quandary:  He can remain where
he is and wait to be captured, or he can flee, postponing what seems the inevitable. As
he thinks, he hears and sees much. The paragraph that follows is rich in frightening
imagery:

The
baying of the hounds drew nearer....Down a watercourse,,,he could see the bush
moving....he saw the lean figure of General Zaroff...through the tall jungle weeds...was
the giant Ivan, and he seemed pulled forward by some unseen force...the pack in
leash.

• Clever
  plot reversals = a change of direction in the plot that is
  completely outside the direction of the plot, but which works artistically.  For
  instance, near the end of the story, Rainsford is forced to take a desperate chance by
  leaping out into the sea.  At this point, the author suddenly leaves the narrative about
  Rainsford and begins to tell the story through Zaroff's eyes.  This plot reversal
  creates suspense about Rainsford as the reader wonders what has become of him.  Then
  when a "man, who had been hiding in the curtains of the bed" is standing before the
  general as he retires for the evening, there is a powerful impact upon the
  reader.

Skillful writers can build interest in
a story through suspense, as Connell does.  And, his use of powerful foreshadowing,
vivid imagery, and clever plot reversals certainly serves to increase this
suspense.