Help with detailing

[xXDuMajuXx]

I'm working on a level, and I can't get the detailing on the grass right. Whenever I try detailing, I get a patch done and 5 minutes later, I look at it, and delete it. I've tried adapting to different styles, and nothing's working.

Maybe someone could suggest a few things to give me an slight idea what to do?

Here's the level so far. You can see a sample of the current style I'm using.