Find a picture on the Internet of a city setting and also a countryside setting. Look at both pictures and discuss what you see with an adult. Make a list of all of the features of both settings paying attention to what you can actually see but also the colours used in the pictures, what you might hear and smell, which you prefer.
Then, choose one of the settings and write a descriptive piece of writing about it. Make sure that you use wonderful adjectives, fantastic similes and really try to create an image for your reader.