thanks for the tips guys i'll do my best!

Nice! It looks better than the other one!

Oops lol for some reason i thoght you were him XD.
i see what you mean it does give it a comic book feel

-Kingy- I think black outline gives that cool comic book feel, but I have to try your suggestion. BTW, it's not my pic.) About the picture - I like it! I don't know, however, should anyone concern that feets are copy-pasted - as it is looks nice, but shadows are wrong is seen with closer look.))

Its all about context i'm not saying black outlines arent necessary but that on yours a grey outline would work better. But its your pixel :D

-Kingy- And why your avatar uses black outline?

The linework is good but get rid of the black and replace it with grey outline because the black outline wrecks the pixel.