He used pastel with gouache highlights on at least eight sheets of blue paper including one for the face glued on canvas on a sketcher.
Guidelines are important in photography. They make the job of the photographer easier by making composing a photo easier. When the rule of thirds is applied to photographs or film it makes the art more pleasing to the viewers eye.
hope this helps !!
I’m pretty sure it was initial sketched or drawings
He was focused on salvaging St. Peter's Cathedral. Afterwards, he designed a new church which is a hallmark of English Baroque.