I used Terragen for this mountain-scape. No plants or other objects, but I was able to use the terrain coloring to suggest vegetation and rocks. It makes me think of Yosemite National Park. All three mountains bear some resemblance to the Half Dome there.

I created this high mountain lake scene in Terragen. The software didn't allow for any objects including plants, only the landscape, water, and atmosphere. But by giving the ground variegated colors I was able to get the impression of wildflowers growing by the water.

“Far over the misty mountains cold
To dungeons deep and caverns old
We must away ere break of day
To seek the pale enchanted gold.”
- The Hobbit

This was made in the Terragen 3D landscape generation software. I was using the original version of the software, now known as Terragen Classic, which didn't allow for any objects such as plants, just a basic landscape and atmosphere. It was also the freeware version not for commercial use, so I couldn't render very big images or sell prints of them. But it was a good basic introduction to 3D landscape software.