I read a tutorial on DPChallenge and decided to try some of the ideas. First, I downloaded VirtualPhotographer--a free plug-in for Photoshop that lets you create a lot of different effects. These were used to create the top image (starting with the HDR photo).
For the middle image, I made 6 copies of the image and varied the brightness on each one then combined using HDR.
The bottom is the original processed mostly in LightRoom. (Resized and sharpened in PS)