Reds in the Aurora Borealis

I was fortunate to see the Aurora for two nights during a trip to Iceland. Unforgettable! Magnificent! But more than green...I saw reds, purples, blues shimmering across the black sky and reflecting colors on the clouds. (A small percentage of people see all the colors because their retinas don't "burn" out. I am one of them.) I did a series of Aurora paintings. Here are reds.