There are lots of rules and ways of thinking when you compose your photos. The golden ratio is deeply rooted in our culture and is found again and again in nature such as in the Nautilus shell . Our minds quickly captures the very harmony of proportions.
There are tools on the Internet where you can get help to crop your pictures so that you get a better harmony in your photos. Composition adjuster gives you the ability to easily add on help lines, so you can quickly and easily crop your images to get the right symmetry. It works better if you use Internet Explorer as your browser.
In Gimp you can also add some lines on cropping and selection tool such as the heart, the Rule of Thirds and Golden Ratio. It is a great tool to crop the images so that you control the audience into what is interesting in the picture. this is something you can apply to photoshop as well.
Photos that lifts from the rest is far too often that is using elements with derived proportional to the golden ratio. In the picture with the snail and the ant, it is the golden triangles that create a lovely picture. Ant on the shell also shows that it is not only about composition to get a picture to lift. I like images where there is symbolism and thought behind. You have to depart from the rules of sense.
The same applies to this shell where we can clearly see how the spiral from the first plant to stop the blade in the foreground. The challenge is to recover an eye for how to get a good composition that caresses the eye.
The Cat at dawm, I simply have instead gone from golden ratio to some extent, but used the template to place the cat. The cat I placed beneath the lines of the golden ratio, which creates a small asymmetry. You can also see that the lines go through the lots where the background varies in color. This is a counterbalance to create a little harmony in the background of the picture.
Equally important to learn the rules, it is to find openings that are just your style to break the rules. To create your own style requires you to stand out from what is cliché.
Learn More: About thirds rule and the Golden Ratio, Golden Rectangle on Flickr