What are some examples of imagery in The Great Gatsby?

Nick, the narrator, uses a great deal of imagery, often to show the ostentation of the homes and parties, and especially, the people he meets during his time in New York.  

First, his description of the Buchanans' home in East Egg really allows us to observe just how rich they are: he describes their home as "elaborate," a "Georgian Colonial mansion" of red and white, immediately overlooking the bay.  Between the beach and the...

Nick, the narrator, uses a great deal of imagery, often to show the ostentation of the homes and parties, and especially, the people he meets during his time in New York.  

First, his description of the Buchanans' home in East Egg really allows us to observe just how rich they are: he describes their home as "elaborate," a "Georgian Colonial mansion" of red and white, immediately overlooking the bay.  Between the beach and the house is a quarter mile of lawn, decorated with gardens and walks and ornaments.  Nick's description of the house's owner is as detailed, and it gives us many clues about Tom's character even before we come to know him: he has "Two shining arrogant eyes" and always seemed to lean "aggressively forward" with his muscular, "cruel body."  

Nick goes on to describe his first sight of Daisy and Jordan, lounging on an "enormous couch [which] buoyed [them] up as though upon an anchored balloon.  They were both in white, and their dresses were rippling and fluttering [...]."  Moreover, they were "as cool as their white dresses and their impersonal eyes in the absence of all desire."  We get a sense of both women's haughtiness and supreme self-importance from a description like this.  

Nick's description of George Wilson likewise conveys his desperation and hopelessness: "He was a blond, spiritless man, anemic, and faintly handsome.  When he saw us, a damp gleam of hope sprang into his light blue eyes."  

It is, typically, visual imagery that Nick uses, helping readers to see both his characters' appearances as well as to gain some insight into their lives and personalities and values.