You are right about lighting. i realized that after the fact and I tried to darken that side of the planet best I could. Tried the best i could
in terms of the fire I found a nice explosion picture with a good black backdrop and placed it in sig at linear dodge I believe. Erased what looked bad and around focal and resized. then I used a hard brush at about 9 pix and placed white and black dots on top of the explosion stock. then I smudged them toghether to get that smoke effect. erased over focal. The trail is also a stock photo I found and also smudged a bit.
I used a hard brush for the smudging with all shape dynamics set to zero, scattering set to 229 and jitter at about 90. strength jitter at 100. this smudges the white and black dots well into a nice smokey look. I also sharpened this smoke to bring it out. Came out pretty good on top of the explosion stock.