I understand that because of how the terrain works in the game engine it is impossible currently to make cliffs that hang outwards over terrain below but just by making those rough looking jagged vertical cliffs would make a huge difference on the natural beauty of the mountains. Just like small rivers would add so much to the plain landscape. And don't get me wrong: LiF nature looks beautiful!
Surely this is not a high priority thing to make but maybe we can see some cliffs in the feature. Maybe even outwards hanging cliffs which would be epic!
Here are few images to give you an idea of vertical cliffs:
