Hello, I'm currently working on a map using Saderan's tutorial. Everything went smoothly until page 7, where I start adding elevation. I cannot seem to create mountains with such nice 'peaks'. All the mountains I try and make end up being terraced/flat looking. I've experimented with different brushes and opacitys, but I still cannot make it look quite right.

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This picture shows the problem. I can make it look slightly better by using smaller brushes and lower opacity, but still nowhere near as good as it looks in the tutorial. What am I doing wrong? Does anyone have any advice? Thanks for your time.