Beautiful photos! I love when the frost sticks to the trees, like that. it's always so fleeting, though! The composition of that last photo is really nice. It almost looks like a frozen firework!
Every once in a great while, we get freezing rain that coats the trees in a thick glaze of ice, mapking them appear as if they were glass. I have yet to get a good photo, but when the sunlight hits the trees, the entire forest lights up with reflected and refracted light.