This one i added on stars using noise filters and gradients.
I found this very hard to make look realistic, I thought adding in a moon with a glow would help but not really. I also took out a pole to minimize distractions.
This one i added in fog and light rays, i used a white solid colour with different opacity and gradients to achieve this effect. I think i have over done it a little bit but it makes everything else a bit less distracting. I then added in light rays on the head lights using sections and solid colours. I then masked it a bit it make it less harsh
