This is a very simple pose dedicated to a specific purpose: selecting a face.
When testing different facial combinations, it can be challenging to choose the right face, especially as they might be facing different directions or showing various facial expressions.
This pose focuses only on the face, allowing you to judge without distractions.
It also works with very low-resolution images, enabling you to quickly experiment with many combinations of facial settings. These can be used later in your mass generation process.
V1.1 just moved the face downward a little so upper part of head could show.
This tool works better with dynamic prompt extension which can produce combinational or random choices.
My personal workflow is to generate a lot in a batch and cherry pick some preferred ones later.