Amazing sky with rainbow

A lot, a lot of washing this morning and then, Donald on a half day, visiting to collect my car and then head off to N. Berwick where he'll test drive a Vauxhall. (Verdict later - no hand brake, just a button to press. Weird not to pull on a hand brake. But he reckons he'll get used to it).
When I got home it was to witness an incredible rainbow and red/orange sky. I would have gone chasing a better vantage point but it may have disappeared, as happens. This photo only hints at the rainbow.