
Every composition has a set of defined elements from depth of field to subjects to the very contrast of the details in a piece. There is however, no set scale for any piece.
The challenge of any creative piece is utilizing all of the elements to form a connection with the audience, to give that emotional bond that keeps their attention, makes them want to understand. In a narrative this can mean perspective in the piece or scale of the subject matter (Will it affect the world? or Just a few lives?) or this can mean the very length of a piece.
Building...