Unfortunately, I got there a little too late for the really spectacular action. But there was still quite a bit left. Towards the end, we got a lot of the green (lower atmosphere monatomic oxygen, see https://sciencenotes.org/aurora-colors-explained-southern-and-northern-lights/) with some nice interesting shelf-and-curtain structure.
I started off with longer 18-25 second exposures and ended with 8 second exposures, which showed more details and less color.
Here you can see some of the green projections:
8 second exposures:
a little wild 
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