What are the hard-pen calligraphy ancient poems in 2020?

2. Pen calligraphy works, as shown in the following figure:

3. Pen calligraphy works, as shown in the following figure:

4. Pen calligraphy works, as shown in the following figure:

5. Pen calligraphy works, as shown in the following figure:

6. Pen calligraphy works, as shown in the following figure:

7. Pen calligraphy works, as shown in the following figure:

8. Pen calligraphy works, as shown in the following figure:

9. Pen calligraphy works, as shown in the following figure: