In some ways this shot, or collage, was an accident. As with my previous shot of one of Company Fierce's dancers, I had intended that at least one of these would be a standalone shot. But, for one reason or another – composition, focus, pose, etc – I wasn't entirely happy with any of them.
So, this is the result, and in many ways I definitely think that the sum is greater than the parts.
And as far as post-processing goes this was relatively straightforward. I added each image as a new layer and set the opacity of the top three to around 50%. I also repositioned the woman in a couple of them to fit them all in the frame. There was also some minor blurring here and there as some of the overlaps were a bit too distracting.
As there are four shots combined I haven't put up the EXIF data but they were all pretty similar: 1/400 shutter speed (or thereabouts), f/5.6, approx. 200mm focal length, and fill flash.