Thank you very much !
klassiersieb, I've made a visual guide for you to use on how to get Special K working for you, but I see that you worked it out yourself. Congrats on getting it to work. Anyways, I'm going to go ahead and post the visual guide I made here both for future reference and for anyone who might be experiencing or having the same problems as you had with using Special K. I hope that my visual guide will prove to be useful to others who are using Special K with SOTTR.
There are 7 steps to the visual guide with screenshots below for easy reference.
Interested broThere was an improved version on https://pcnudemods.blogspot.com/2019/05/new-nudemod-lara-shadow-of-tomb-raider.html
I downloaded it before the page went offline and can upload it if someone is interested.