Here are some of the initial models we developed:
We also didn't agree on sizes--some models showed the Earth bigger than the Sun, and vice versa, while some even showed them being the same size. We also had differences in how we showed the light, and we didn't know if the moon had something to do with all this.
We DID agree though, that a 3D representation of this phenomenon might help us. So we set up shop with some flashlights and Earths. And here's what this looked like: