I could not believe these book cutting sculptures. Because it is really very difficult to cut the papers to get the shape of human face. and each paper has different size and comparing previous paper, then cutting is not easy. It looks like realistic face, in which the lip and teeth are properly created.
For beginners: You should practise to get a half sphere then try to carve different depth of face. In your next book, you will get an idea to get proper shapes. Please send your book sculpture photos to me by adding comments below.