thanks guys.  I know it's stiff, it's still really rough, but I still wanted to get some feed back.

And I don't concider the pants pillow shaded.  If you zoom in, it's clear that the light source is definitely coming from the front of the pants.

the first image is walking, but i think he puts down his feet a bit hard, how about making the feet go down slowly instead of 3(?) pixels at once, like in the secondlast frame the foot is still 1 pixel from the ''floor''

your arms allso appear to be twitchy, i think that is because you tweened to.. mathematically..
in a swing, you should show the audience that the further up the object(hand) is, the slower it moves... simply put:

GOOD!       BAD!

then on to the run, i think you should tilt his body more forward to show movement, and add a hop to give it some more umph

allso, when he lifts his feet, he goes immediately in a angled line downward, to the floor. you should make it that he is actually lifting it up more as he goes forward, untill the foot is a bit in front of the body(or under it, if you tilt the body from | to /) and then bring it down a bit fast. it would allso help to tilt the head a bit downward, as if he is pushing himself to the edge.

and some small things one both the anims, the elbows seem pretty rigid, and the anims are kinda speedy (AND HES GOT NO EYES OMG OMG! =P)