I just finished this bad boy. It's my second "no photos used at all texture". I had some sweet custom photoshop brushes to help me out though. Even with the brushes, I find stone more challenging than wood.
It's a stone ground or floor texture. I just made a new Worgen and they have stonework all over the starting zone, so I guess I had stonework on the brain.
Next up will be another ground texture, like sand or gravel.