I've seen it twice in real life - the first time, just after we moved to Norfolk (nice dark skies). Amazing experience - red and green streamers from the Northern horizon, almost all the way to the zenith at the peak.
Second time I saw it was a on an Air New Zealand flight from LA to Heathrow. Soon after dinner, the captain comes on the overhead and says "Folks, we've been watching this for the last half hour - and thought we'd share it. We'll get the girls [sic] to turn off the lights, and those of you on the left hand side of the aircraft - take a look at the sky. We're over Greenland at the moment by the way...".
Luckily I was on the left side of the plane. What a stunning view! Mostly green (like your photos) but also some red - but two things stood out - firstly, the snow on the ground was also green in reflection, and secondly, you could see the focal point of the display over the North Pole. Incredible.
Anyway, after about ten minutes (and presumably a call to ATC to OK it), we turned round for a few minutes so those on the other side of the plane could get a look too.