Purple Sunrise

This is a piece of work from mid-2015, recently sold as a big print in Art for Art's Sake Wellington, my partner for national sales.
The panorama is stitched together from 63 HDR (bracketed) images in 3 rows of 21 images.
Each of these 63 HDR images is composed of 3 single photos in 3 different exposures.
This makes a total of 189 photos to create this panorama, some 85 megapixel, 43 megabyte all in all.
Why the effort? - Well, first, this shows a view angle of about 180 degrees, from City center towards the sunrise east of Lower Hutt. Second, this sort of lighting is very difficult, the city just getting the first sun rays, the bright sun in the East, and deep shadows in the foreground. Best solution to me seemed HDR bracketing, to even out the light and make it look like, for the onlooker, really standing on Mount Vic at sunrise.