Help converting a stepped height map into something that can be used in Wilbur?

[Broadhead]

Hello everyone, I have a few height maps I've made in the azgaar generator, and I can't figure out to satisfactorily convert them into something that can be used in Wilbur to good results. I've been at it for a few days and I don't have a good handle on it. So far I have tried adding a lot of noise, blurring the image, painting over it with an airbrush and trying to layer distance maps on top of it. I have also tried a number of these techniques in conjunction. I have been able to turn out Wilbur results that come closer than my initial attempts but they have very artificial, unnatural elevations separated by artificially textured plains. Unfortunately I can't quite figure out how to turn it into something on the level of the Arsheesh tutorial.

Below is a piece of one of the height maps I am attempting to use. Hopefully it is zoomed in enough to show the detail of the terracing system azgaar uses.




And here are the two pictures I got from tutorials that I've been aiming for as targets.