I would get rid of the converging verticals. In some scenes they might look OK to make a tall building look taller, but in a buliding this low it just does not feel right to me. I would also add some clouds or other atmospherics to the sky. Now it looks like a model photographed in front of a blue background. Also Photograph a runway or large parking lot. The streed needs a little dirt even if the building s are perfect.The foreground needs a car and some tree branches intruding into the frame. You will have plenty of opportunities to enhance you scene, but don't equate pristine sterility with a great render. A great render needs believability and that denotes some natural processes at work.

@dzinetech said:

Its not a bad start but I think the texturing could do with a little work and some modelling tweaks:

It looks like you are using QMC and Light cache as you render engines. I'd recommend switching the primary engine to Irradiance map. It also looks like you arent making use of the SketchUp sun so make sure you are happy with how the shadows appear in SketchUp and then turn them off, go to the vray options and global switches. Turn on Default lights and ensure that your environment and background maps are set to sky. Make sure you are also using the physical camera and try using the following settings.

Shutter Speed=125 F-Stop=12 Iso=200

i changed this in my settings and this is the result 😮 .
thx for the info, if you have more of these tips and willing to share them, please do!
thx man!

http://img247.imageshack.us/img247/7204/huisvolledigopnieuwgetebr4.jpg