the render isnt bad, the text is OK, but please, please, change the stroke, no emboss or transprency please. put it to 1px black stroke.and blend in the original render, not a lot but just enough to make a diff. its not SIGN lol its SIG. not bad for your first one. try getting real good brushes (eg grunge, abstract etc etc) from http://www.deviantart.com and then practice with them.