Adding heightmap terrain, first try. Note to self: White isn’t so good for terrain.
You can see how the harsh brush edges are covered. The heightmap works like a kind of glue. I might be able to remove most of the brushes that made the shape of the inlet, simply sculting the heightmap instead to create a smoother version of the shape. Making terrain in FTE works just like in Crysis Sandbox. You can blend up to four textures on the heightmap – I used placeholder white, which makes it hard to sculpt properly.
Next step would be props and vegetation, which can also be placed from FTE’s in-engine editor.
In this case, I’ll have to stamp a hole into the mountain behind the temple and attach the dungeon first though.