Is it the original, Wang Shizhen's calligraphy?

It should be the original. Reason:

1, exquisite seal, and ancient cinnabar stamp pad.

2. Paper is ancient paper, and the paper pattern can be seen as non-contemporary paper.

3. Ink painting is also from Gu Mo, which is different from modern ink painting and ink painting.

I wouldn't forge such a handwritten note before.

If you don't see the original, it may not be right. For reference only.