This model has a full dome then an angular backboard surrounding the back of it which looks like is is going to curve in. Both spaces are defined and easy to pick out but I am not sure what the dialog is.
This models is very circular and the skewers curve into the centers while the shell covers it. They both sort of meet in the middle. I can see the dialog as coming together. Everything about this model works together.
Both of these models have a lot in common. They both bent their skewers in order to form a dome shape and the the Bristol board is formed around the dome. Both spaces in each model are defined with curves.