Quoting aaron_da_killa
Pretty good! Although it has no distinct features (a good thing) to give away the fact that it is tiling, it's quite low res so it may still appear to tile from a distance. It could also do with some sharpening it's quite blurry, just in photoshop filter > sharpen > sharpen once or twice will do the trick.
Good idea. I'll try that on the in-game texture.
Quoting aaron_da_killa
Looking at your source photo, maybe next time you could take the photo a bit further away from the wall too which will give you a better result provided you have enough megapixels to still be able to capture the detail of the individual bricks from that greater distance.
I'll try this too, if I find a wall which is high enough. But even that big, the texture looks nice.
I also keep the original textures in order to edit them if I have to. This way I don't have to make a new texture out of the same photo.
The detail texture's scale is not bigger than 256x256, because it makes bad effects when I sharpen the image. I will upload an image to show you what happens. But later.