His shoulders go too high up, I think you should fix the shading like buttbutt said or remove the third, fourth, fifth, and sixth idle animations because it makes him look like he's shrugging too much.
[edit] I animated Jammer's punch and it needs one animation of it's fist coming out to puch.
[edit] I animated Jammer's punch and it needs one animation of it's fist coming out to puch.