A model is a three-dimensional of a person/thing or of a proposed structure.
A mock up is a model or replica of a machine or structure, used for instructional or experimental purposes.
A prototype is a first or preliminary version of a device or vehicle from which other forms are developed.
Answer: It's probably important to have realistic interpretation because then the artist's audience can actually relate to it.
The role of the artist has change ( if any) may have been the fact that now not only do they speak for themselves, their art now expresses other people's feelings too that can not express on their own.
.Explanation: