Put mod files (SK_Res and d3d11.dll) in main directory game NieR Replicant ver 1 22474487139

After loads save game and gameplay map, if mod dont work, you need use "Reload all inject textures":
1. Click in your control xbox "Back + Start" or (Ctrl + Shift + Backspace),  
2. in Special K Tools Configuration, click Render Mod Tools, 
3. expand the next window (drag the mouse opening the window more) and you will find the button "Reload All Inject Textures"

ps:for steam games 
maybe you need install and 
 use the start game with Special K and Put mod folder (only SK_Res, dont d3d11.dll) in appropriate folder,   , 
here an ex. tutorial
https://wiki.special-k.info/SpecialK/Local and (https://www.nexusmods.com/nierreplicant/mods/82)