petrified jungle
Partial metering used to ample light on several points. -1/3 EV compensation. A kenko red filter used to filter out green and yellow hues. 16-bit RAW file in CS3 ( ACR 4.2 ) channel mixer used to convert to gray. later in CS3 a diffused glow ( blurred duplicated layer + lighten integration and split dark pixel integration from the lower layer ) to accentuate the fog was applied