For a first try I think you did quite well. You're cutouts are good, you have a basic idea of spatial relationships, and it looks like you put some thought into your sig. There is room for improvement, as always. There's really no point to having a barcode in your sig, unless you're using a techinical theme, or you're trying to say that Gohan is some kind of mass-produced warrior, I'm not sure if it belongs here. Like other people have said the color inversion looks odd. It makes Gohan look a little sinister.