Some C and C please? I would love to here responses of love and hate, whatever you think about it does the job justice.
The line where the kick is, make it curve, from the bottom, to the foot, and take the border off, or make it blend in more, like setting it to grain merge, if you use GIMP
I think it's pretty good, but the orange background makes Goku very hard to see, especially his hair. I love the background either way, but you should have saved it for a different sig. Otherwise, I think it's a beautiful sprite sig. Good job :D