So after that I went off and raised Purchase Orders, debated lists of project tasks, argued about access mechanisms, had the new version of the software demo'd to me and so on. The usual exciting day. At luchtime I did walk in my comfortable sandals into town to discover WHSmiths did not have Burda yet!
However when I came home, I carried on with the experiment. Same outfit, same shoes, but now I am adding tights (hosiery), first of all nude sheer tights and second black opaque tights. The nude ones didn't come up to my crotch and got binned after the shot, but the black opaques fit well.
Here I am in the nude tights. I guess they even out my skintone slightly and are a good match, but they make the shoes slippery, which in a court shoe is not great.