@ honoluludesktop,
Some of this textures were use in other scenes and
I didnt remove them.

@ Oli and Scott,
Thanks for the advice and insight.
I need to put this things in to practice.

@ honoluludesktop,
The grass are hair particles and under this particles is a grass texture and under
it is another one that looks light green and extends far to the horizon. The dark green in the horizon is called horizon color and settable in blender.

Below is another render and maybe to many round corners. I tried to set
a shadow on the grass but tree is to short and might have to stretch it.
Flight will depart in 15 minutes.

Alright, Tom. Ill see what i can do.

An update. I havnt done much to the model.
I smoothed the surface of the building.
On the grass i have to figure out how to break it up.
I did put brown patches on it.

I have to work on the glass and make it
arch. It looks to flat and to far in.

Ok, im not sure exactly how to do that. Do i have to create the
site first? Site is trees, terrain, foundations?
What came first? The chicken or the egg?
Im lost. You guys have the training.
Does every body do it this way?

Thanks. Yup, I know the trick, just type a number like 70S with the S at the end.

Scale of this building is way-off.
Doing lots of guess work.
Yes, its Bulletproof.

I was trying to make a building. It was rendered
with blender 2.5 and took about 7.5 minutes to
render on a single core laptop.
Yes, You have to be very patient setting up your
materials, lighting, grass, trees and things like
this. It can take months to set them all up.

After you have every thing ready you dont know
what to render.

Here's a quick model, lacking detail. I get impatient. Far from finished.

Nice work on the materials.

This last render used all of my RAM, 512 Megabytes, and slowed down with the Virtual Memory.

One hour on this render.

I add a flower from the 3dwarehouse.
Placed a normal map on the stone.
Increase time 5 seconds.

Its a nice render engine to work with and you dont have to keep changing to many settings.

Here's some test renders with the speed comparisons and the blend files. I didnt check
all. Good for learning.
http://wiki.blender.org/index.php/User:Jaguarandi/SummerOfCode2009/TestScenes

Rendered with blender 2.5 and a single core laptop. Model from the 3dwarehouse.

Here's more of the same.

An update. Still trying to figure out grass particles.
I duplicated one section of grass and pasted in front but it looks two tone.

Oh, didnt put the size of the grass blades. You can find it under Material, called strand.

Ok, Here's the settings i used for that last render.
Settings start at the left and continue on the right.