I truly love panel 2.  It’s one of my favorite action scenes I’ve done so far.  the way the right punch dominates the major movement of the scene but is undercut nicely as the left cross comes out creating an almost perpendicular line of action that comes right out at the viewer in almost a classic Jack Kirby foreshortening style.  I’m not saying I’m Kirby mind you, just that I like to steal from the best.  =)