Eighth walk cycle attempt

Revisiting the walk cycles again to see if I can tighten them up any more! I've not got access to a light box this weekend but I didn't want to let that stop me from doing anything, so I pulled the frames from my sixth attempt and traced 'em in Photoshop to see if I could tweak the arms and legs a little more.
 


I still can't seem to get this right. I fixed some slight volume problems in the arms and tried to have the shoulders move back and forth to give the impression that the body was twisting. I think it looks better but it's still way too stiff and robotic — I can't figure out exactly why but I think it may be because it's such an exaggerated walk and it doesn't really work on a 24 frame cycle; it should probably be faster and more lively. I think the upper body is too static as well — it's constantly held upright despite the extreme drop into the down position. If I were to squash or bend or otherwise have the body react as he drops and rises it might help to make it feel more "alive."