Here are some very simple test renders I made to learn how to work with AO a bit better. I made them all 1024x768 so if somebodyy has a lack of simple wallpapers feel free to use any of them :D.
Simple glass objects
Simple objects with very bright light
Simple red glass objects
They are nothing more or less then just some simple testrenders, but I like the simplicity of glass so I like them :D.