I thought it would be nice to share my SweetFX settings.
Main thing is I got rid of the Green Fog. I didn't like it.
Without the Green the games has more blue, red colours which results in a more purple look.
It's just a slight enhancement. Nothing big. But I like to play Witcher without the greeny stuff and with stronger Colours like it would be with HDR.
I hope someone here enjoys it.
Download : SweetFX VK Setting
-> Extract it in ...\The Witcher Enhanced Edition\System
Here are some Screens: