A Rare sight indeed

[Fingers]

Forgive the quick half arsed pano, I dont have much time at the mo.

 

[Chris of Arabia]

My first thought is that it would make a better image if you had a little more of the houses in the shot - it those that give the rainbow its context.

 

[Fingers]

Did not have the focal range to get anymore in, sadly, taken from the attic office window. I was not sure how long it would last so had to make snappy desicions

 

[LaFoto]

So is this two photos put together?
If you have time to go back to this one, you might want to tweak the levels a bit to bring out the colours more (in other words this is too bright, I think).