I seem to catch things at the last minute. That's how it went with the Garden of NPIRL Delights, and the other day I caught Winterfaire while I still could.
I paid the price of tardiness; in no way could I have seen it all. That said, I saw some wondrous things, like this snowscape with skaters and a striking aurora borealis:
Even places that weren't designed for the event were made even more lovely by the snow. The Second Skin Labs building is beautifully lit without being garish:
So... someday I will visit one of the many gorgeous sites in SL well before its last day. I hope you had the chance to explore Winterfaire thoroughly.