How it works:
The whole thing is fairly straight forward... we'd recommend grabbing an existing ENB preset from the Skyrim Nexus (or Steam Workshop), loading it into Skyrim, and then determining what you don't like about it. Once you've thought of a few ways to improve the preset, load it into the ENB Customizer and drag the sliders around until you've achieved the best, most personalized settings out there.
That's really all there is to it! If you have any questions, please don't hesitate to ask below in the comments.
You can download the mod here: http://skyrim.nexusmods.com/downloads/file.php?id=17400