Thanks guys for the kind words
As I mentioned before (I think) the idea was to do a matte painting, the majority of the mountains are 2d, with only 3d geo for support of the light and shade so I knew where to paint and color overlay the textures as well. The ship, rocks and ground are 3d, the dust is a particle with also a fluid fog effect thrown in too. The fluid fog was a preset in Mayas visor which I tinkered with until I was happy with the final look.
I also rendered out Z depth passes for fog distance too, plus spec and ambient environment passes for the ship so it sits better in the surroundings, also a little bit of color correction overall was done so everything looked in place for the final image
Am working on the new page now....between other stuff...