"The "gait" is unsuited to a creature with the body mass implied by the body outline, even assuming a very heavy fur coat. (In US terms, it runs like a basketballer, and should move more like a fat fullback.)" JiK

I agree. That struck me too. In a similar vein, I think that policemen all move somewhat the same, i.e. a bottom-heavy gait, as though they were attached to the earth. I don't know if it's because of the gear (revolver, holster, baton)but I've never seen one walk or run in a fluid manner.