Actually the surrounding buildings are different, but I needed the picture for a didactical and artistic purpose, so I haven't reality as a target.
I have not skills in managing kray instances: I used it for the roof tiles, for the plant in the white vase and for the trees. While I find the tiles satisfying I am not happy with the trees. I used the kray surface options with photon mapping, unchecking the cache irradiance option and imposing 1-10 as min-max rays.
I find the shadows are not so convincing.
C&C welcome

