I would like to suggest an aura of falling snow, you already have this animation (you could take it from the one that falls in the winter location of the house for example,
My idea is if I could make an aura with snow on the ground that fades as you move, but if you stay stopped, more snow accumulates but with a certain limit so as not to grow mountains of snow either (all this a type of smoke of cold under the ground, something like mist)
