It's not perfect but I did what I could with it. I tried a lot of things but I landed on this.
Yes the standing thing isn't done yet. It's going to be animated too eventually.
Run animatin is very smoot. But I think you must add some color on his clothes. Different grey tones especially
excelente . muy buen trabajo. me agrada mucho la forma en la que animaste el pelo ;) genial .
The skinny legs and big feet remind of how Gunstar Heroes looks. B)
Your character looks much better running than in his standing position. I would recommend making his pose a bit more dynamic.