Obligatory HDR over-processing
Everyone needs to create a few over-processed HDR-images to get it out of our systems before calming down and using it right :). Here are a few of mine, taken early this morning when the light was all reddish and weird.
To be fair, the rainbow-picture didn't need much post-processing to begin with, here is a more reasonable (normal) picture of it with only some minimal color-editing and cropping: 
I used the free and very easy to use HDRtist from http://www.ohanaware.com/hdrtist/ - you just drag and drop pictures onto the app and choose the strength of HDR. Really easy way to maul perfectly good pictures :).
