^ Ah, OK I get it now. It must be that really wide waistband that's making your arm look so long. I always thought that they were centered on the top of the pants, but it looks like you must have the bottom edge closer to the pants top edge.
As for Kirk, I guess it's because he was taken from a scene where he just got up after wrestling with someone. In this scene, I'd expect him to be standing more upright and with one leg forward, as though approaching you from behind. Maybe if you move him a little closer (forward and to the left), it might work a bit better. As if he were just able to leap onto your back.