You have met the challenge here nicely with the angle of your potograph. I think the composition also works very well since the dog's head is not centered in the frame... the focal point is the face and it is nicely off center...
The exposure looks remarkably good for the Sony FD-81 camera. Working in the snow often causes cameras to over or under expose certain areas of the image.
The border on this image is a bit distracting. The reason it's distracting is because it is a 'loud' color that does not compliment any particular part of the photo. That color seems to draw my attention significantly. When you apply a border, you may want to keep this in mind. Don't let your border become the subject of the photo and don't let it distract from your subject...
this a nice shot of your pup in the snow. Unfortunately, I found the pink border to be very distracting - it didn't add anything whatsoever to the shot for me.