The Tree...

...updates:

_ light setup

_ particel systems of the tree and the grass

_ some work on the background image

_ modeled a scene around the tree

_ reworked the nodes setup in blenders composer

The lighting is not bad, but after some compositing via blender nodes everything in the foreground turned nearly black. Now it seems that there´s no depth in the picture... I will fix this in a few days :)

The wind engines are from a past project you can find here in the blog. 

Rendered with blenders internal render engine. Post in Blender and Gimp.