In 1984, what kind of imagery is depicted in part 1, chapter 1, and part 2, chapter 2?

Much of thein , helps to establish the ominous tone of the story and the threatening
settinginhabits. From the opening sentence, both are fairly bleak:

It was a bright cold day in April, and the clocks were striking thirteen. Winston
Smith, his chin nuzzled into his breast in an effort to escape the vile wind, slipped quickly
through the glass doors of Victory Mansions, though not quickly enough to prevent a swirl of
gritty dust from entering along with him.

The bright day
is contrasted by the reality of the cold. Winston is trying to "escape" a
"vile" wind and the clocks strike the ominous number thirteen (also heightening the
alien-but-familiar nature of the storyas a normal analogue clock only has twelve hours). The
imagery here allows the reader to immediately be swept into Winston's cold, unwelcoming world
that is not too unlike their own.

Later in this same chapter, the reader is
able to ascertain the total control of Winston's government from...