Balance can be seen is the symmetry of leaves. This leaf is an example of symmetry since it is divided in half with one side mirroring the other.
This picture of the Sun is an example of the rule of thirds.
An example of radial symmetry can be seen in drops of water.
A picture of mountains is an excellent example of proximity in nature. It can be clearly seen in this photo that some of the mountains are closer than others.
This sunset is an example of contrast because the darker shades of color in the clouds cause the brighter colors to stand out.
Credits:
Created with images by esiul - "insect nature live" • sadiehart - "zebra" • GLady - "leaf green green leaf" • Antonis Lamnatos - "Aquatic Sun Set" • technicolor76 - "water drops" • WikiImages - "horsehead nebula dark nebula constellation" • Polar Cruises - "Arctic Mountains" • skeeze - "golden eagle soaring bird" • NASA Goddard Photo and Video - "Iceland" • TomaszProszek - "east mountains friends" • oatsy40 - "Fern"