Is the size of the motto 14 of the writing brush appropriate?

Each word is about 30 cm, and the length of the word is less than 5 meters. The font size and length of writing brush 14 proverbs are not limited. The motto 14 of a brush can be about 30 cm each and less than 5 meters long. Brush is a traditional writing tool and painting tool originated in China. It is made of the hair of birds and animals and is listed as one of Four Treasures of the Study in China. Brushes are divided into hard hair, double hair and soft hair.