Answer: it mainly is by the words and descriptions you use
Explanation:
Most likely harmony, the degree to which a person appreciates the harmony depends on various things such as: their level of musical training, their ear, and again just their opinion.<span />
Medium: Any material used to create art.
Proportion: A principle of design that refers to the size relationship of an art work to each other and to the whole.
Technique: The manner in which the artist controls his medium to achieve the desired effect
