The purpose of this exercise is to examine an image and identify the balance of the picture. Whether the main elements of the picture are architectural, colour, tone or graphic makes no difference - the important thing is to decide how the balance works within the composition.
Balance in an image is more pleasing to the human eye. It gives a sense of harmony. In these first two images the balance is symmetrical, the point of focus centered within the frame. One vertically and the other horizontally.
|Balance of image 3.|
In this image of a succulent plant, the leaves radiate out from central point and give symmetry on all axes.
|Equal balance of image 4.|
|Balance of image 5.|
I agree wholeheartedly with that and it isn't always easy to see why an image works or has balance but it just looks and feels right. In this final image the balance is difficult to explain.
|Balance of image 6.|