One image is trimming on a hat. In the second chapter, Elizabeth is seen trimming her hat and her father suggests she is doing it in preparation for meeting Bingley.
Another good image is the description of Mr. Collins. He is described as a "tall, heavy looking young man," meaning he is tall and a little obese. The image adds to his characterization because we see that along with his ridiculous character, he is not very good looking (Ch. 13, Vol. 1).
A third image that might be good is the rain. Rain draws Elizabeth and Darcy together because she decides to remain at Netherfield while her sister is ill. The image of rain also appears soon after Elizabeth meets Wickham. The rain keeps the girls from returning to Meryton, so she does not get to learn anything further about him (Ch. 17, Vol. 1).
One good example is the description in Chapter 28 of Lady Catherine:
“Lady Catherine was a tall, large woman, with strongly marked features, which might once have been handsome. Her air was not conciliating, nor was her manner of receiving them such as to make her visitors forget their inferior rank. She was not rendered formidable by silence; but whatever she said was spoken in so authoritative a tone as marked her self-importance.”
The description gives us the impression that not only is Lady Catherine an imposing figure, and a little frightening, but that she wants people to believe she is the most important person in the room.
Another example can be found in Chapter 43. Elizabeth and her aunt and uncle are taking a side trip to see Pemberley, Darcy’s home.
“...then found themselves at the top of a considerable eminence, where the wood ceased, and the eye was instantly caught by Pemberley House, situated on the opposite side of a valley, into which the road with some abruptness wound. It was a large, handsome stone building, standing well on rising ground, and backed by a ridge of high woody hills; and in front a stream of some natural importance was swelled into greater, but without any artificial appearance. Its banks were neither formal nor falsely adorned.”
The description of Pemberley shows us that Darcy is not ostentatious. His house is beautiful but not showy; the gardens around it look natural and not artificial. Darcy does not feel the need to impress using his house, but he impresses Elizabeth nonetheless.
A third example can be found at the end of the novel. Elizabeth is walking with Darcy and apologizing for misjudging him. He sees that her feelings may have changed and asks her if she has had a change of heart. When she admits she has,
“The happiness which this reply produced was such as he had probably never felt before, and he expressed himself on the occasion as sensibly and as warmly as a man violently in love can be supposed to do. Had Elizabeth been able to encounter his eyes, she might have seen how well the expression of heartfelt delight diffused over his face became him.”
The description of Darcy shows the emotions he has never before expressed and allows the reader to see Darcy as he really is.