White balance was set to auto, then I added some temperature and contrast in post. That - in conjunction with the white beams from my light box - made them seem more golden as you mentioned. In real life under a duller light, they're less yellow (more brown) and less bright as well. So far, I only know of my Elm Burl and
@ostewart's Redwood Burl, as well as Lion's Mane on some promo shots of the A12t. I'm not aware of any others yet. I highly doubt 64Audio would offer lacquer-less wood faceplates. These look like thin inlays rather than thick scales, though it wouldn't hurt to ask if they could do something bespoke, of course.