Background music: "Normal Life" by Street Bizarre.
The SN 3D Texture Sets shown here in this video, can be downloaded for free at http://scentednectar.com/3d
This batch has 529 free texture sets. Each set contains 10 image maps, so there's actually a total of 5,290 textures.
The 10 images in each texture set are 2 diffuse/albedo maps (negative images of each other), 2 normal maps (one the inverse of the other - use whichever look you're going for), and 6 multi-use greyscale maps (use for metallic, roughness, gloss, displacement, transparency, etc). They're abstract, so there's no correct way to use them. Mix and match as you like.
Products I found useful to go along with my textures and in making this video:
Xfrog: 3D Trees and Plantshttp://xfrog.com/
Cybia's xTex: Image Tiling Preview Freewarehttp://www.cybia.co.uk/xtex...