Ok,I’ll try to follow @adrian2301 advice and keep it simple…
Working on overall scene and finishing the “roof” in a very simple way.
Added a basic ground with snow material based on Ryan King Art tutorial (https://www.youtube.com/watch?v=UzJnsqIRbDw)
Added some lights
Added some non-final trees to think about the final composition.

Tomorrow I’ll try to add final details on horses while in the train to work, and maybe try to get some particle snow effect done by the evening after work…