Thinking outside the standard box!
There are of course many standard aspect ratios which photographers use on a regular basis to crop an image. The obvious ones that immediately spring to mind are 3 x 2, 5 x 4, 1 x 1 and 16 x 9. There are very good reasons why these are widely used but there are also images which require a ‘non standard’ approach. This picture is a perfect example.