Here’s the results of yesterday’s experiments! As you recall, I tried out a new brush in Worldpainter. Here’s how the mountains turned out in real life. Uh, in Minecraft.
Here is the mountain that was built from moving the brush around in a random way.
To me this looks like the sort of mountain that the Minecraft software generates on its own. It fits in with the landscape. Note, I spawned a few creepers in, just to give you an idea of how big it is.