Ask them to isolate the motif, if possible. Match the complexity of the project to student abilities. Discuss the results. Find out if any computer programs that will aid in creating a design are available to you and your class. Even simple graphics programs may have a component that allows design creation.
More sophisticated programs allow for more complex creations.
Have students identify the design, motif, pattern, and use of translation or rotation. Suggest ways to transform the class, the school, the playground, or nearby areas similarly to Femi's work on her city. If possible and permissible, try some techniques to change the surroundings. For example, printed patterns can be put on large paper sheets or roll paper pieces and mounted harmlessly to surfaces for a short time.