Caro's got a great idea for reducing the "Rate" of the Spiegel. I think you can easily wear it either with white jeans or dark ones or any kind of patterned trouser (almost).
I've been thinking a lot about visual weight since Claire's post and the accompanying link.
Angie works this colour value thing brilliantly. It's one reason she goes for light footwear (the whole bookending concept plays with that). But she is "bright" and wears high contrast really well. You strike me as "soft" both in your actual colouring and your preferred looks. I feel as if I am somewhere in between. I CAN wear black but have to be so intentional about it, and that becomes difficult in my climate where dark and visually weighty boots, booties, coats, jackets, and other clothing are really a necessity for much of the year. Where it is sometimes possible to find "lights" (i.e. a white jacket or coat -- impractical as that is) but rarely can one find true mid-tones.
Anyway, this was about you, right?
I am thinking that you can wear this jacket but simple bookending with the boots might not be quite enough. It's going to be a question of getting the visual weight "just so." I think in your initial threads with it, that was there.