Your work looks a whole lot better than mine lol, and thanks, but I can't even figure out how to build a. By the way, if you want the textures that I have worked on, I'll be glad to give them to you. I'm not certain but I think it affects normal maps as well.
Otherwise, everything has this weird darkness to it. What I quickly realized was that for the PBR stuff in Unity to not look really wrong, you need a real-time reflection probe to be affecting whatever you're looking at. I was experimenting with doing this by hand, except not just with normals, but metal, height, and occlusion as well.