There is no shading in this video. This video is a man explaining the basics of realistic shading, pencil shading techniques, and how to shade a portrait. There are 3 examples that he drew prior to making the video
Lennon and Maisy do a cover of "Call your Girlfriend" which in my mind is superior to the original. I watch this when I feel hopeless about humanity. It restores my faith that people have unlimited capacities for greatness if they let it shine out.