For those that are curious I've tried these on my iPad Pro with Apple Pencil Pro. Photoshop works to some extent, but no rotation, however, Fresco is happy to take advantage of rotation. Note that rotation (barrel roll) is not enabled by default and needs one to delve into brush settings. For those of us who prefer the iPad to the Mac, it would be hugely useful to have a list of the names of those brushes that should have rotation enabled...

What happened to Cheat-Sheet 2?

Comparing "Loomis Method Real Time Demo" to "3D Model: The Loomis Head" there would seem to be a difference. In the demo the a line goes from chin to the centre of the ear plane, whereas in the 3D model the same line goes to the end of the brow line. Is this a choice, is one preferred?