Hi Guys,
I am offering some free PBR textures made in Substance Designer in 1k resolution for free download. The library will continue to grow over time. Keep in mind that maybe not every texture is great so far, but they are improving with every one that is published. You can grab them here:
http://vfx-world.com/textures.php
I also published a free full-process tutorial on YouTube for my latest texture, you can view it here:
Hope you like it and enjoy!
Regards.