It is magical!
I also like when the sun is just coming up, and a light frost is falling (from the trees?) like sparkling pixie dust.
Sometimes when riding home in the dark on a frosty night my headlight catches the
moisture cloud of my breath!

When I'm going through the hassle of figuring out how to dress for my winter ride (and then doing it), I think it would be nice to bike in a warmer winter climate. But then I think of the things you and I have seen and realize cold weather bike commuting has some special beauty all its own!