National Gallery, London on a windy night.
I am playing with Silver Efex Pro 2 for the next few days while I make up my mind about it:
I’ve used AlienSkin Exposure for years; I love it but I want to try other plugins as well; Silver Efex Pro has lots more options (and a greater chance for me to screw up while playing with various moods).
Here’s the colour version processed with AlienSkin:
Another view of the National Gallery: