This sketch is a more detailed illustration of the circular structure and the stairs within that I roughly detailed in the chalkboard sketch in the Brainstorming Ideas section.
What should I upload in this Develop Solutions step?
Consider uploading images (JPG, GIF) of your rough digital model. It's ok if your model is still a work in progress. Show an axonometric or perspective view with people, which will help others understand the scale of your library.