We have recently seen the temperatures rising and falling, which often has the effect of loosening water molecules from the snow in sunny areas and allowing them to drift freely during the day. If outdoor objects are colder than the air and water molecules collide with them, the molecules stick to the objects and a collection grows. This collection of water molecules is called hoarfrost.
I particularly enjoy the look at night, when trees are illuminated against the dark.
Currently, we have very cloudy weather. The combination of extensive hoarfrost and cloudy skies has put the world into grayscale. It has an otherworldly look at times.

While I was out walking, several ravens were having a conversation. The sounds they make are fascinating. Until you become familiar with them, you would not expect it is one type of bird making such a variety of unrelated sounds. Looking around, I saw one raven perched at the top of a spruce tree. The contrast of its black feathers against the frosty spruce tree and pale gray sky was striking. The raven was perched too far away for me to get a good picture of that scene. However, he sensed my disappointment and flew over me so I could get something to show you.
Yes, otherworldly is a good description. When I lived in a woods, it was a magical place to be with everything covered in ice and snow.
It is a privilege to see these circumstances, I believe.