au rouge

and red sky.

Extra red in the sky courtesy of the stacked GND filters.
They produce a red/magenta cast, especially when stacked, but also due to the underexposure of the sky with 6 stops of filters at work.
By this time the sun has almost set, shadow on the foreground and direct light just about everywhere else, made for a high dynamic scene. needed about 4 stops of balance between lower half and upper half. I used 6 stops and under exposed the sky.