If I had to choose just one artwork that represents the cold, snowy Winter and holidays to me, I would pick this "Wintery Owl" by Oana Befort.
If you are interested in bringing this little guy home then you can contact Oana by sending her an email. Her contact info. is given on this page on her website.
Some detail on the piece:
"Wintery owl" is an original illustration done in watercolors and acrylic white ink. There are no prints of it at the time. The illustrations measures 9" 1/2 x 12" 1/2 and it can be yours for $130 (plus shipping).