I am after modelling a polygon head (Tom Cruise, not that you'd guess from looking at it), alot more practice is needed.

I'm looking at a few different methods:

https://www.highend3d.com/maya/tutorials/peter/model2.3d


In figure 7-31, how do you create a cross section curve in Maya.
In figure 7-33, the author says "Once the spline cage is patched, the form becomes a solid polygon model". How do patch this cage?