Brown shoes instead of black, loafers instead of lace ups. Two rules violated, but this also follows the theme of the business suit in the non business setting. Popping socks would have been too much here, so simple navy is the best bet.
had it refurbished, and you have been asking for an "action shot". Pay no attention to that heap of clothes on the chair in the background. I do run a clothing store out of my house, you know, and things have a way of encroaching on the living space. Ask Mrs. G.
If you've got a navy blue suit sitting in the closet that was worn to some interview long ago, and you don't have a "suit job", and nobodies dying or getting married anytime soon, dust it off and try it out with some softer, more well worn accoutrements, just because you can. You may find in that navy suit a new old friend you never knew you had.