I kept it "photorealistic" not surreal. The scene was surreal with the sun lighting the bottom of a clearing thunderhead at sunset that it didn't need any further digital help.
To have some detail in the shadows this was shot with rain drops falling bracketed +/-2EV (stops) and the resulting RAW files were run through Photomatix for the HDR file generation. The resulting HDR file was then tonemapped in Adobe's CS5. A little color correction was in order to remove the too much orange reflected from the clouds and voila "Cemetary Sunset" was created.