We don't get a lot of snow in my part of Arizona but I do see a lot of snow pictures from friends and family elsewhere. One of the almost universal problems is with the snow in the pictures and the over all scene looking blue or perhaps dirty gray. That's caused by the camera trying to figure out the lighting of the bright snow and the "white balance" of the scene. If you're feeling brave you can Google "white balance" for a complete explanation.
Essentially one of the things the camera has to do is decide what is white in the picture and work from there in figuring out the image processing. With extreme scenes like a lot of snow, the camera is usually wrong and you get blue snow.
I'm going to use a friend's shot of her Corgi in the snow as an example.
Here's her shot:
The fix for the blue snow is really simple. Most image editing programs have the capability to set what's called the "white point," i.e. the whitest point in the photo that should be white. This is usually set by selecting a "set white point" tool of some sort and clicking on the area of the image that you think should be absolutely white. The software will then recalculate the rest of the image from that white point and shazaam! White snow:
That fix took just one click on the picture. No fancy stuff at all. And now you know how to make your snow pictures look more snowy.
You can also go two steps further and set a black point and gray point but mostly, just getting the white point correct does the trick well enough for our family and corgi photos.