There are so many things to consider when doing a narrative illustration. As it states in the week 11 lecture it says that you have to start with your big idea. Once you have your main concept/big idea it will help you in making the rest of the decisions for your narrative illustration. Your main concept has to be powerful and communicate properly with your audience. And with your main concept you have to identify the main things within that concept, which concept is the most important and conveys your ideas even stronger. Its also very important to choose the critical moment for your illustration. Whether it is the climax, the events after the climax or the events before the climax. Each play a key role and its your choice on which you think conveys the story the best.