How to Sculpt the Ear. Practice Following Rick Casali Method

I'm learning to sculpt and recording my practice. In this ear study I follow fellow Youtuber and artist Rick Casali's method for sculpting the ear. I highly recommend following his channel, and his Patreon, he is great at explaining and showing. He also has great respect for his teachers as well.
Additionally Phillipe Faraut has some great books, I haven't seen his videos but I bet they are good too.