I just wrote a calligraphy work. The whole work is square, 6×6 square, * * * has written 28 words, and two words are in a row. How can I sign it?

Then it is better to leave two blank spaces, both of which are too tight and depressing.

The last line is signed. The lettering should be lower than the upper edge of the text, and the printing height after printing should be higher than the lower edge of the text. Then, the size of the inscription should be smaller than the size of the text. If the signature is more detailed, you can make the word smaller and drop two lines.