Beware the Yurei

This is a picture I made mainly to explore the possibilities of Blender plug-in True-Sky. I took a scene I had made in Blender previously, and finally decided to add a ghost coming out from the forest to add some mystery to the greenish fog.
The final render is almost entirely a raw Cycles render wit some filters added inside Blender (glare, bokeh blur, kuwahara). I also ehanced the halo around the Yurei in Fotosketcher with a watercolor effect. The shinto shrine and the torii were intially created in 3DCoat, whereas the yurei comes from an old project made in Lightwave years ago.