MeMyselfandI

I found it on this site called http://www.player-art.com anyone know how to create this... but I wanna create a baseball player ....

I just downloaded paint.net and I have been having some fun with making Sig's for one of my Baseball Forums I go to. IS THERE ANY WAY TO RENDER PICS (EITHER USING MAGIC WAND) OR ANYTHING ELSE? I ALWAYS SEEM TO HAVE TO COPY THEM MANUALLY AND THEY NEVER LOOK CRISP AND RENDERED BECAUSE THEY STILL HAVE SOME OF THE ENDGES FROM THE PREVIOUS PICS IN THEM. OR I SEEM TO CUT TO CLOSE AND a lot OF THE PIC (I WANT RENDERED) IS CUT OUT AS WELL... HELP!!!!!!!!