what are the differences between size, proportion,scale and perspective, and how do they relate to "realistic" space?
Scale refers to the size of an object (a whole) in relationship to another object (another whole). In art the size relationship between an object and the human body is significant. In experiencing the scale of an artwork we tend to compare its size to the size of our own bodies. Proportion refers to the relative size of parts of a whole (elements within an object). We often think of porportions in terms of size relationships within the human body