In these worldwide corona-crisis times, one has time at home to deal with Terragen:
I've been playing around with big displacements and this is what came out of it:
A large, eroded sandstone mountain range on an habitable moon of a gas giant. Through gaps in the cloud cover you can see the strange vegetation in the valley.
I had to make some corrections with Pixelmator on the final render, since some rendering artifacts were left over because of the "exaggerated" displacements.