D
CC buff works well!
I was actually looking at the Altura Night Vision, how breathable is it? I remember last winter when I'd started cycling, it was absolutely freezing but the thing that was coldest was my face and hands. Obviously I've got gloves now but I can't think what I could wear to cover my ears etc.
I still use my ones from my golf days so not the best material/fit for bike use.So, for me, one or two layers on the top, thin poly cotton trousers, fingerless mitts, Buff and cap sees me from about 30° down to -5°, when you're thinking about the sanity of cycling because of icy roads.

I have the Altura Night Vision Evo and have worn it on several occasions during a wet summers day. It was quite damp inside when I took it off, which is to be expected I guess. Fit and everything else is good though. For your face and ear how about a balaclava?