When you complete a photo shoot and want to submit the photo for a class grade you MUST complete the Photo Shoot Worksheet found in the link below. This is the type of process you must have when you complete your Cambridge Exam Projects so this will serve as practice. Note, Cambridge want to know the "process" you went through to obtain this photo. This includes technical details but also they want to understand your "feelings" and "motivation" when you undertook this task. Strive to make the graders understand why you did this particular project. Below are two links. The link on the left contains a sample of a completed work sheet. The link on the right contains a worksheet template you can download and use.
Be certain to include a photo that is at least 8 inches wide so the detail can be seen. Also, when you have completed the project, convert the file to a PDF before you turn it in.