Structures to be avoided are:—
Those in which the lines all run one way without opposition:
Those especially in which the bottom of the frame is paralleled:
Those in which the perspective of a line or the edge of a mass happens to be a vertical:
Those in which an opposing plane or attractive mass barricades the entrance of the picture:
Those in which two masses in different planes happen to be the same size:
Those in which objects of equal interest occur in the same picture:
Those in which an object awkwardly prolongs a line:
Those in which the line of the background duplicates the lines of the subject:
Those in which the picture is cut by lines too long continued in any direction: