Chicago is the place where Nick oriented. This is supposed to represent how the city of Chicago is compared to New York. It represents that Chicago is much more Relaxed, Civilised then New York.
New York City
The Egg where everything is new, All the money is passed down, long earned. where old money is used to live a fortunate life without work
This gloomy land of Ash is formed from the workers and low-income rate. It's full of ash and dirt that isn't ever able to be cleaned. showing that this area of the island is very poor.
This scene is very open and intimidating. Compared to Chicago, the city looks grand, or royal. it looks crowded and busy. showing that there is more commotion in New York then Chicago.
West egg is where everything looks wealthy, but it's for the people who begin to work for their money. It also is earned through labor and, potentially illegal practice.
Gatsby's party can be compared to New York, it is very hyperactive, or complicated. anyone was allowed to go, and there were no rules at all. Anything can happen here, just like on the streets of the city.