I agree with the security thing. You can't tell from the street that it is what it is. It looks like any other building from anywhere except the front side. I think that plays in your favor. My shop is hidden behind the house, and cannot be seen from the road, or from any neighbor's yard due to my 9 foot tall cedar hedges. Those whom I trust have seen it and admire it, but I have had past issues in other houses where total strangers would stop and come on to my property to see what I was doing. I like the privacy thing.
Your project is fantastic, and gets full marks from me.
p.s. I noticed the attack dog you have in the yard.