The best aurora shots are the honest - and lucky ones - attentive to shutter speed, composition, and are not overly-saturated/exposed in post.   If I had a nickel for every shot I've seen fraught with star  blur from earth rotation yet wild with color, I'd be a wealthy man.   In the age of the digital darkroom it's far too easy to create what you wanted to see out there but Mother Nature wasn't offering, when you get back to where it's warm and cozy.