How to make painted terrain look more natural

Hey guys i’ve noticed that my terrain looks really bad and artificial. This is very much visible on roads because on grass and shrubs cover the rest and you can’t see the texture that well. So my question is how can i make painted terrain look less artificial, especially on roads and dirt. Also, is there a way to randomise tileing so it’s not that obvious?

Have you looked at the YouTube videos yet, there are several good ones about terrain etc.