At first I thought it was shame that the dog is cropped but looking at it I think is adds to the sense that the dog is bounding closer, about to overwhelm the photographer.
Great use of a narrow DoF, and the snow being flicked up and catching the light – wonderful.
Looks good-
well caught-
and to everyone lucky enough to have a good dog like this,
don’t miss any opportunity to get some pix-
a dog’s life is a short thing,
and you never know when they’ll be wrenched away-