I managed to get out in the brief cold snap at home. A couple of shots worked for me. One was shot on an 80mm Summilux R on a 5D (the stream) the other on a 40 year old, 35mm Summicron on an M8 - the intent being to use the flare as a part of the image.
That 80 Summilux is one heck of a lens, and that's a terrific photo. Great composition, great colors, and you feel the cold just looking at it.