Here's another update to this house. Basically I just rebuilt the pool after reading the tutorial on building a swimming pool . I also added a playground for the kids and an underground pump room, with a window looking out into the pool.

Here's a night shot of it. By the way, this render took 6 hours and 16 minutes.



Here's a day shot from the same camera position. This render took 5 hours and 5 minutes.



Since the above shots took so long, I decided to just take a few screenshots in the 3D View instead of photos.
Here's an overhead of the pool and playground.
The shots following were resized to about 800 pixels wide to better fit the post width. The originals were 1280 pixels wide. The above two photos were rendered at 817 X 616.



In the tutorial it mentions using a triangle for the slope, but it didn't texture as good as I would have liked it to do (the texture was skewed diagonally on the top) so I used a wall to make the shallow flat surface and the slope, which textured a lot better. [:)]

Here's a shot of the access to the underground pump room.



A shot from the other end. I know, that's not a swimming pool filter/pump but it's the closest I could find without having to build one myself. [:))]



A shot out into the pool. Credit for the curved window goes to OK Hoff . Thank you! [:D]



And finally an underwater shot.



This sh3d file is only about 70 MB, and since it takes so long to take photos I may call it quits on this project or simply take screenshots in 3D View in the future, if I do any more work on it.
I guess my system is just to under staffed - hardware-wise - to handle all this detail.
What I don't understand is my first project ended up being about 135 MB and it didn't take near as long to take a photo.