This preset was made using Real Lighting mod and Real weather mod
Instalation:
1-Download Reshade from oficial page "https://reshade.me/"
2-Install reshade and choose DirectD10+ compatibility 
3-Download all the Effects or the one this preset uses (Technicolor2,Inmersive_LUT,Curves,FilmicPass,Lightroom,AmbientLight,Colourfulness,DOF)
4-In the final window of reshade instalation it'll ask for EDIT RESHADE PRESET, press the button and select as Preset -> inmersive_witcher3.ini 
5-Drag and Drop the content of the folder "Drag and Drop" where you have reshade-shaders folder inside the game folder/bin/ and overwrite-combine
6- After that, the game should start with my preset already loaded into the reshade, open reshade in-game with HOME button, on the setting tab you'll find a keybind to enable and disable all effects at once while playing.