It is generally believed that Feng Chengsu's copy is a double-hook ink book, so it is most similar to the original. However, critics believe that the strokes of Shenlongben are too complicated, more "artificial" and lack the proper features of writing.
In the eyes of many calligraphy learners, the dragon book is the only book that can reflect the original preface to Lanting Collection.
The dragon was originally like this:
For the vast majority of calligraphy learners, Preface to Lanting Collection is a very good copying material, so you may wish to practice more, and then find out your favorite paragraphs and write them repeatedly.