A winter scene designed and rendered in blender 2.93
I used photoshop and special brushes for creating tire tracks and then used them as a textures in displacement modifier to create these on snow layer
here is another one with different sun position and much more shadows
First one looks good, second one blues in the shadows on trees looks over saturated. And snow around the tires print has very unnatural contrast between white and dark blue
Both are great 
I like the second one a bit more - but Michael already pointed out: It looks a bit oversaturated. A bit to blueish.
How did you created the snow in the trees?
Thank you, i used real snow (it’s a free addon) and you can tweak it’s material nodes as you want
you can put snow using this addon on a selection of faces too! so you can put them on leaves or plane curves to make that illusion!
Regarding the second photo, I agree that the bluish tint seems a little wrong and weird!, but shadows on snowy surfaces should look a little blue but on trees because they are thinner they remain kind of white, maybe i should increase the subsurface scattering or use photoshop to get rid of the blue tint (lazy solution 
)
my raw render isn’t that bluish but when you increase contrast and tweak your render output color a little, these things happen.
