Careful observation is the first step to good description writing. Whether you’re at home, in school or on the road, pay attention to your surroundings and take to heart the things that really catch your attention. You may discover how wonderful the world we’re living in.
As noted in Suggestion for Writing, jot down what you see at a part (any kind), and then choose from your notes to work the contrast into a descriptive paragraph or essay.
Walking With Him 