Ugh... Now I have to repeat what I say on every forum T.T. Don't use tutorials and say they are your own animations. They only show you have the ability to copy someone. Compare what you are doing to the tutorial to see what you are doing wrong. Don't copy frame by frame. Also, the arms were too clenched and his legs are spread out too much. Work on it buddy ;)
If he used my tutorial (which it looks like he did) then copying frame by frame isn't an issue because I didn't put a frame by frame up there. Nothing more than guidelines; and if he can make an animation with them then he's as good as able to animate it.