I like photos that make me want to make me ask a question about the subject or comment in some way.
All I can say is, "Wow! That dog must really trust his human!"

The only criticism I can say is that you might want to consider cutting the contrast by just a smidge.
But... this is still within the range of "artist's prerogative." I'm only telling you what I think. You should set the contrast where you like it best.