Final answer:
The question concerns the arts, focusing on the concepts of perspective, proportion, and scale, which are used in visual arts to represent three-dimensional space and the size relationships among elements within artworks.
Step-by-step explanation:
The concept in question, synonymous with 'viewpoint' and 'sense of proportion,' refers to the notions of perspective, proportion, and scale in visual arts. Proportion relates specifically to the size relationship of various parts within a whole or form, for instance, how a figure's head size compares to the overall body.
When this relationship is unexpected or non-standard, we may term it exaggerated proportion or out of proportion. Scale, on the other hand, involves the size relationship between different elements within an image or between an artwork and real-life objects.
Lastly, perspective refers to the method used to represent three-dimensional space on a two-dimensional surface, including techniques such as linear and atmospheric perspective, or the narrative perspective in literature which can influence tone and viewpoint.
Artists and writers use these concepts to convey particular viewpoints or to establish a specific tone or mood within their work.