Look at the quality of a word from four opposite aspects: brushwork, typesetting, composition and ink painting.
The brushwork is the exquisiteness of the pen, and whether the strokes of each word are very accurate.
The word method is structure, whether there is a center of gravity, whether there is a strange strategy,
Composition means that you can't express the calligrapher's temperament, and you can't express the feelings expressed by words.
Ink painting is skill, pure skill.
These four aspects are all important and indispensable.