oneyeopen, I didn't take a pic because I can't seem to post my photos from photobucket on here anymore, it's all changed.
Prologos I hadn't heard of the green flash, thanks for that.
Kaik yeah the concensus online seems to be that odd coloured clouds are due to pollution.
Very chuffed (Midland Brit saying) that so many people, nearly 900 views, are interested in beautiful natural phenomena.
I think cloud formations can be very beautiful, lots of examples online.
Regarding beautiful natural phenomena once as a child walking home from school in a thunder storm I saw ball lightning hovering above a house, it was amazing.