Background
I'm focused on close texture sets for use in the grounds of the game. Each category will have up to 5 variations in texture and with the tools of Unity will still be possible to mix all these sets for best results.
There are still a few sets of texture that I need to devote time to create/adjust (such as textures for snow terrains, lava and beach).
The existing textures have been adjusted, I used some free textures I found on the internet and other I did manually using photo manipulation always seeking to look more cartoon for textures and leaving the cotes more saturated.
The textures you have 'found on internet' are from World of Warcraft, you better watch out ;_) Are the textures blended per-vertex or per pixel? Per-pixel blending offers much better results and options of expression for artist.
This textures I got from internet only to test concept and balance color. But the use of terrain in game show problems in performance, so probably I'll back to lowpoly scene and I'll paint everything again :D