Thanks Gill for those amazing images. Just out of curiosity - are the colours pretty much close to what you see with the naked eye?? I haven't travelled to your part of the globe, and was wondering whether this phenomenon was actually green and is what you actually see?
(Just to clarify - I am not in the camp where I think that photographs should be 'realistic' or endeavour to depict exactly what you think you see, I am just interested in the phenomenon)
Julie