How bout you take a look at some actual cliffs.

I've never ever seen bark that looks like that. It's only because theres moss there so you all jump on the bandwagon of thinking it looks like a red oaks bark. Fact is: bark is WAY more grained and stringy, and looks very flaky and isn't like that at all....Real bark actually has lots of tiny spores, fungi and germinations growing on the surface, lots of little hairs, and actually looks like wood.

The actual crack patterns of the texture look nothing like what you'd see on tree bark.


Examples:





all from different trees. As you can see, the colour is much more blotchy and contains more green. The surface is also severely grainy and stringy.

The actual crack pattens of the bark are much more uniform, almost V shaped. It's all very neat, and none of it fragments off.

Even if you were to find a tree with smooth irregularly fissured bark (wtf), with moss growing in between it, it doesn't matter because cliffs can look like anything depending on location and what they're made out of.

What I painted is crevassed muddy shale with moss growing in the damp cracks...

I painted it off a real cliff, and it looks almost exactly like what I painted.