Freda42,
Yes that is the way round that I would have instinctively done the trim unless requested to do it the other way. I again think it is not jointed very accurately which detracts from it. I can see that you may prefer the look from afar done the other way as the thin silver line would match that on the top of the tiling. This is a caution to other prospective tiler clients reading this to specify/check how things will be done.