You really need to stop desaturating your normal map and overlaying it over your diffuse. You're negating the purpose of the normal by forcing a faux lighting on your diffuse. All of your specular maps are bad. Again, you just desaturate your normal or diffuse and call it done. It's a horrible practice and is seriously…
Dude, nearly all ur specular maps are too bright and high contrast. Also, NONE of them use color. I suggest you look up how to make specular maps. Its more than just editing the levels of the diffuse map and then desaturating it. Take a look at my texture sheet. The specs are on the top right corner.…