Scene done in Blender 3.3 and lit with Cycles.

Interiors done roughly just so it feels it has some kind of transparent window glasses.

No game ready nor low poly.

No guarantee that the scene will look the same in other software or renderer since lighting and shading done in Blender/Cycles using complex shading graphs and nodes such occlusion and procedural noises in materials.

Snow object polycount is 670000 polygons.