Many thanks for all your wonderful comments and interest in this - and all my other images. Some may think this image has been manipulated/enhanced by the use of layers. None of my images are layered or composites - I think such effects have little justification in real wildlife photography.
I watched this group of wild zebra grazing for some time and could see they were merging in a line - this image is exactly what I saw and captured other than the B&W conversion. Many thanks once again - your interest and support means a great deal to me.