How to write the hollow characters of these three words in the Arbor Day handwritten newspaper

Arbor Day literary hollow bold calligraphy

Arbor Day Chinese colorful cloud writing

Hollow calligraphy, also known as double hook calligraphy. Double hook calligraphy The "five-finger method" of double hook calligraphy (double bract) Double hook, also called "double bract", is a method of writing.

Writing hollow characters is somewhat similar to the Chinese colorful clouds in fonts, but it pays more attention to the techniques and rules of calligraphy itself.