Dan,
Again, your set up was very well done. Engaging and easy to grasp. Such a sharp contrast to your sketch pages. I couldn’t understand them instantly and lost interest as a result. I regained interest as soon as you went to 3d, but the it petered out again because there wasn’t enough progress through the pages. All the forms seemed like slight variations on each other. You need to branch out to all kinds of form solutions and then narrow in on THE RESULT.