Fog and headlights problems

Hi, I am a real beginner at Blender. I want to create a visual effect for a short film i’m making…it involves an alien ship rising up through some fog, with beams like headlights coming from it’s eyes. When I rendered an image from my model, I cannot see fog or the lights which I placed by the eyes.
Any ideas how to sort this? What is the best way to add ‘headlights’?
And I can’t seem to upload my blend file…maybe because it’s too big? :confused:
Thanks in advance for any help!! :confused:

Try pasteall for your .blend

How are you making the fog? As for the lights in his eyes, you may want to try volumetric lighting.