Seeing the smoke and embers blowing around at the end credits of the 2011 remake of Conan, got me wanting to make a fiery night sky myself.
I used particles for both the smoke and embers.
The ground glow was made with spotlight haloes.
Embers, smoke and ground glow scenes were combined in the compositor.
Alas, I wasn’t able to make thick roiling smoke clouds nor get the embers to illuminate nearby smoke (as is seen in the movie).
This is a 100% Blender internal image and took just over 1 and a 1/4 hours to render using 2.64a.