If you want to see some amazing colors, check out the fascinating macro photos of Thomas Shahan. He photographs spiders mostly, but also flies and other insects. The photo above is not ET's distant cousin. It is an adult male 'Bold Jumper', spider going by the name of 'Phidippus Audax' in the scientific world. When magnified, the shapes and colors of insects are amazing.
See also my recent blogpost on insect wings.