Just a first quick setup of the scene. Landscape modeling and texturing was made in MODO with Vray plugin. For the mountains in the distance I used an aerial picture of a bay near Chile from USGS, as suggested by Ronen, and turned it into a displacement map to create the basic geometry. Obviously some plants, rocks and more realistic textures from Quixel megascans still need to be added! I post here a picture I found on the web that I used as starting point and inspiration. Funny enough, what I had in mind was Patagonia by I ended up with a picture of a lake not too far from where I live!