Color and amount of burnishing/ antiquing are up to you. My first pair, for instance, had much stronger antiquing compared to the tan ones above. I'd recommend you do one at a time (unless you're going with trial shoes) because even though the fit it is great (which I'd define as being as good as a well fitting Carmina last), it only become perfect on the second pair.
Yup. My last pair was Aurum lasted. These were a Japanese last he modified that he thought would fit my foot well (wide forefoot with a standard heel). You can see the difference between the two below.
Welcome! I certainly see the need for in between sizes.
That said, will you be offering more standard work type apparel (i.e. without the pocket flap)? Sadly I spend most of my days wearing a white shirt.
Your pocket squares also look amazing.
I am US based, although currently in the UK. I have a variety of polishes though and could certainly take some interesting pictures around London. Sole options will be great. So would flat versus round lace options.