Ants marching in a line can be an example of alignment.
Proximity can be seen in the pattern on the coat of a giraffe. There are many spots on giraffe that are different distances apart.
Repetition can can be seen in many different types of leaves. In this picture, the leaf pattern is being repeated.
Many leaves are symmetrical. If you fold this leaf in half, it will fold over perfectly.
Some leaves are not symmetrical. If you fold one half of this leaf over on the other, it will not match.
Rule of Thirds
In a picture, there are often equal amounts of empty space on either side of the main object, but in this picture, there are not equal amounts of empty space on both sides. This shows rule of thirds.
In this picture there is an example of white space.
A clear sky is an example of negative space in nature.
This picture is an example of contrast in nature. There are many different shades here.