I think, because of the dog, you know what kind of ears it has. So that isn't it. I think it's slightly blurry, but I like the depth of field. Voters are just very inconsistant from challenge to challenge.
That's too funny! Our German Shephard does the SAME thing. Any plastic bottle is fair game. She looks just like yours also. Check out my portfolio, challenge entries - I used her for the movie titles challenge.