Wish I had the patience to do this. I do have a model of my own, a husky. Huskies and malamutes are so adorable as puppies, and just gorgeous once they've grown up. Excellent job capturing the expression, it has a lot of personality, yet remains distinctly canine. The nose is twisted a little oddly to the right, but it's hardly noticeable and there's no way I could do better.
Very sweet, definitely !
Some tips for you, and anyone else who happens to see this:
For the fur, try creating a custom brush. Do a few little dots on a small transparent canvas and save as a brush. Then when you pull down the brush menu yours should be there. (Hopefully. I haven't created a brush in a while, so that may not be exactly right, but i'm sure there are tutorials on it around the place..)
But now you don't have to do each individual stroke! Once you've got the basic fur directions, you can then go in and add detail like making clumps of fur, etc. You'll probably notice on mine a few places where you can still see double strokes, but you should try not to show that. :}
Use layers, usually with darker fur underneath and lighter on top.
For the eyes and other PS work in general, i found you can get softer, not so 'airbrushed' looking textures if you choose one of the more solid airbrush brushes (top row) but set to a lower pressure (for edges around 50%, subtle detail about 20%).