The blue in this piece made me think of frost but it could be seen as blue sky just as easily.  Perhaps winter came to mind for me when naming it since it was the deep of winter when I made it. It was the perfect time to try printmaking with conifers, when other plants have very few leaves to work.
 
Acrylic on 140 lb, acid-free 20x24" watercolor paper- sold unframed.