Indeed, they are. Scaled up considerably. I didn't want a billion triangles, so I tried with fewer trees. :-)
I've also planned to set up some closer shots. Here's the first one. I added a ruin for that, to have something to see. It's the same scene, shot from what would be the lower right in the above shots. This one just finished rendering, no post-processing done. And yes, I just noticed that the ruin is hovering above the terrain. :-)