Using Vray Sun for Realistic Rendering within 3ds Max

This is a scene that I did for a presentation about exterior lighting, and I would like to share the making of this scene with you.
The scene is available for download see more info at the end.
First about modeling for the structure was simply easy just boxes with the help of Edit Poly tools, the most difficult to create was the furniture used in the scene, I did it with the help of zbrush and photoshop and the trees and plants was made it with Speedtree and the the Ivy plugin.
The grass was a simple
Vray displacement modifier with this texture for the displacement:

About materials I always use specular and bump map for all my textures, because this will help to the light to be absorb by the objects.
Lighting was done with
Vray sun and sky because it is the most faster Rendering method for exterior images, here is an image of the settings and position:

And for having a good exposure I have used the
Vray physical camera, this is very important when working with Vray sun because you will have more control of the lighting, check the settings:

And for render settings I used a more modest settings for having a more faster rendering, here is the render setup:

For post production I did a sky replacement, color correction, modified the exposure control, some offset, lens correction, chromatic aberration, some glow and sharpen.
Check the Final version

Also I have made it a night version that I would like to share with you