my first attempt at HDR, and quite pleased with the result, which was stitched from two rather uninspiring source images using "Luminance HDR" as the HDR engine. Particularly like the way it's brought out the detail in the bronze and stonework.

For the Luminance HDR/Qtpfsgui group the details are:
pregamma 0.35
mantiuk06
contrast mapping 0.17
saturation factor 0.96
detail factor 1

from two images 2.5 stops apart