Nigel,
These are truly amazing pictures of the sun being a pink disk in the sky! Talk to folk and find out if this is a common occurrence and see if there's an explanation. Is there a lot of pollution?
I hope you can take more with either bucolic fields, a forrest, or else miles of roofs so there is a contrast between just two simple patterns.
I'd also put the camera on a tripod and get a whole lot with a long lens just to add to other pictures!
This sun is phenomenal!
Asher