Two important elements of a photograph's composition are "leading lines" and "light". The eye is drawn towards the brightest spot(s) in a photo and a line, natural or man made aide in leading someones eye.
This photo uses the fence to lead your eyes into the center of the photo... right to the iceberg that's offshore
A properly composed photo rarely happens by chance. Next time you are out shooting look for leading lines and light as a way to create interest in your images.
If you want to learn more, you can check out my workshop page by clicking here,