How does W. Somerset Maugham use imagery in Collected Short Stories Volume Three?

Examples of Imagery:

"He rose to his feet and put on his coat with the astrakhan collar, seized in one hand his bold black hat and, with the gesture of a romantic actor giving up the girl he loves to one more worthy of her, held out the other to R." ("The Hairless Mexican" p. 53)

"They might have been dining in one of the great country houses of England; it was a ceremony they performed, sumptuous without ostentation, and it was saved from a trifling absurdity only because it was in a tradition; but the experience gained for Ashenden a kind of savour from the thought that dwelt with him that on the other side of the wall was a restless, turbulent population that might at any moment break into bloody revolution, while not two hundred miles away men in the trenches were sheltering in their dug-outs from the bitter cold and the pitiless bombardment." ("His Excellency" p. 164)

"The light in the station was wan and cold and the white faces of all those people were like the faces of the dead waiting, patient or anxious, distraught or penitent, for the judgments of the last day." ("Mr. Harrington's Washing" p. 191)