winter collection : https://3dsky.org/collection/shared/5081079 
Blue winter spruce | Picea Pungens winter # 1
In the scene there are three low blue winter fir trees with snow.
Height of trees 1.8 – 3.3 m
Polygons with snow – 450 156
Polygons without snow – 289 230
Needle material using opacity and vertex color map.