Nicest arm variations in spins

[Weathergal]

The way Kamila Valieva drops her arm during the donut spin https://youtu.be/7L_57iFZPcI?t=125
Maria Butyrskaya's back scratch spin with her arms extended behind her (and hands clasped) https://youtu.be/jmwGlmf5xDc?t=284
Alisa Lozko when she first extends her arm during the hyper-extended Biellmann https://youtu.be/Ie0w0fwIjyM?t=170

That Alisa Lozko spin is the first one I thought of! Thanks for posting the link.

 

[Fourleaf Clover]

Hanyu's arm variation on his spins in Chopin. I remember the first time I've seen it, I was completely mesmerized. He's one of the very few guys who do arm choreography on their spins.