I tried to create my own textures and tested them as Material, they are not perfect and i hope i can get some tip what i can do better from you guys;)
The Material is so design that the textures is displayed in differed resolutions based on the distance of the camera.
I used Mudbox to create the Textures and with Gimp i made them seamless.
I Uploaded some of the Textures.
They are all in 2048x2048