In this exercise, I have looked at the method of cropping for compositional considerations; and by using imaging software and a little imagination, pictures can not only be improved slightly; but sometimes salvaged by re-presenting it in another way. (See my last example.)
With this image the picture is not quite level and could be cropped a little tighter.
Straightened and cropped.
To improve this picture the subject could be turned to run more diagonal across the photo and cropped in to loose some of the empty space.
Turned and cropped.
This picture of a swan was cropped in to much when it was photographed. However, a possible interesting arty/graphic image could be created by flipping the image with the help of imaging software then turned and cropped in.
Flipped, turned and cropped.
shaun512659 