I think these monochrome backs are pretty cool and appreciate the effort you put into the article. The images, as they're posted, however, are very low quality considering what I know these devices can produce. Maybe because they're smallish? I don't know. You might want to consider swapping them out with ones of better quality. Specifically, on my MBP Touchbar, many have blocked up shadows and appear fairly soft.
I'd love to see any raws if you're comfortable sharing?
Cheers,
CB