I had the wonderful chance to write this article for 80 LV. In this scene, I go over a couple of techniques on how I created this environment, from Blockout to lighting. In addition, in this environment, I had the chance to work with my friend Nathan Vandevoort.
https://www.artstation.com/nathan-vandevoort
Who created an amazing tool in Houdini that allowed me to instantly get snow on top of my geo inside Unreal Engine.
If you want to check the article, here is the link : https://80.lv/articles/learn-how-to-create-a-nordic-exterior-snow-scene-using-unreal-engine-houdini/
Also, check the environment for a more detailed look over the scene
https://www.artstation.com/artwork/KeZX5r