My landscaping doesn't look as great as @Cbear13 but well, we can't all do a villa ;)
For the front I decided to create a path, made of two different terrain paints. The dark earth one at the edges and a path one for the main part. I decided to add some stones surrounding the path as well as the flower bed. All other plants are basically wild growing ones ;)
http://i.imgur.com/6iaxmLo.jpg
As special hobby areal I added a chess board. The stone nook from 'Romantic Garden" (heck what's that stone was placed by using a room in the basement.
http://i.imgur.com/fZIdLVX.jpg
Sadly the beams are visibly inside the house, so I'll have to find a way to cover them up. But it became a nice nook for sitting and relaxing.
http://i.imgur.com/zhoQn0Z.jpg
MOO was needed to place the pool ladder on the foundation. I also raised the ladder a bit so that it doesn't poke through the foundation. Sadly once she goes up a bit more on the ladder she is grabbing through the foundation.
http://i.imgur.com/uo4Yp4D.jpg
I created the waterfall by raising several fountains to water level in a small room in the basement below the foundation.
The blooming scrubs under the tree was created the same way.
http://i.imgur.com/OcUSZgR.jpg
To give the waterfall a more natural look I raised the foundation by one step, so it is now two steps high instead of one. Another reason for the rais was, that the Sims were able to walk over the foundation with the fence. Heck I knew the fence was a stepover one, but not that it still works on a one step high foundation.
http://i.imgur.com/RowU8i7.jpg
If anyone is intrested, this is how the house currently looks like in my game.
