I don't know what it is, but I get a "Broken Age" type vibe here.

oh thanks JaredOnYT , yes is for a game :) , soon i show more  :D

If this was in a videogame, I wouldn't care about anything else.  This would sell that game for me! :)

Looks nice. I would suggest to make his left leg shaded all the time to make it clearer.

Good job dude! :)

thanks guys i will try to change this :)

Very nice indeed. I think the "static" that Zizka mentioned is maybe because there's not a lot of movement going on with the torso, maybe? 

Nice running cycle. Maybe a 'tad static but it looks real good.