Here's a nice pack that might help you assemble winter scenes quickly.
Check out a winter forest pack featuring different assets and customizable materials which can be dynamically changed with parameters. Please note that the pack is free until the end of January so hurry up.
Among other things, the pack includes several parameters. For example, you can use the Snow Amount parameter to add snow cover on non-snow parts of the landscape or add snow parts to trees and water. There's also the Water Temperature parameter which changes water/ice balance.
- Snow Amount adds snow cover on non-snow parts of the landscape, also adds snow parts to trees and water
- Water Temperature changes water/ice balance
- Icicles Height provides to change icicles size
- Wind Intensity regulates wind speed that affects vegetation and trees branches
- Snow Amount Foliage makes vegetation and trees branches frozen
- Water Speed parameter can increase and decrease water animation speed and water normal intensity
- Snow landscape Material
- Material for static meshes with dynamic snow cover
- Dynamic icicles Material
- Foliage Material with wind Animation
- Customizable water Material
- Demo level shows how to use different assets
- 4 trees
- 3 stones
- 10 grass types
- 1 bush
- 1 snowflakes particles system