Coloured Evening Clouds

"Be a rainbow in someone else's cloud."
? Maya Angelou (Letter to My Daughter)

I've read that iridescent clouds are rare, but I see them rather a lot. This picture doesn't really capture what I saw, but you can see sone of the colour - particularly near the top.

Apologies for the cut-out bit; I used autostitch to make a panorama of a few shots, but if I had cropped it to avoid that, I would have chopped off some of rhe iridescence. So I left it as it is.