I can’t spot anything that

I can't spot anything that looks.like it was done in post (except the occasional appearance of those green lines) unless you've spotted something that I missed. There are several lens flares which occur naturally when shotting towards the sun or other light source. The rainbow effect of those flares are probably due to the type of lens used (plastic rather than glass is my guess). The orange tint in the early shots are due to the time of day they shot them. When the sun is near the horizon it gives off warmer colors and they didn't adjust the color temperature setting (set for daylight). Hope that was of some help.

Will