Yeah! Thats what Im talking about......!

My render is similar...I have hazy.....spectral sun in there.....and the haze is getting grainy..so I jumped the quality boost to 8-12....which jumped my render times to 20+ hours

What was your lighting model?

Quote - I had to give it a try....
Here is 1024X467
108,826,805,123 Polygons
1,140,070 Instances
About 71/2 hrs rendering
DEM of Oahu
All Incredibly Lush Banyon, Mango and Kentia
i26.tinypic.com/2wdvaiv.jpg