I took this shot of Man and Dog, and on review decided that Dog was the most interesting aspect of the photo. I have been pondering on how should I crop it?

Crop one is still Man and Dog. Is Man's gaze adequately leading your eye to Dog?
Crop two is clearly Dog, with a bit of Man for context, but is it a bit confusing?
Crop three is all Dog. Can Dog hold this shot on his own, or are you left wondering what's at the end of his leash? It could be Woman.

I like a good crop, but I'm still finding my way. Opinions welcomed.

Crop1.jpg
Crop2.jpg
Crop3.jpg