Am I a designer or a wanna be?

can someone in the design industry please advice me; as to whether my skills are any good. I'm self taught, with a detailed and comprehensive portfolio - this is the online version: "www.my.opera.com/four49/albums". Should I just call it quite. The industry is a very saturated one, I know and I do understand the value of a good qualification but, is'nt hard work, talent, passion and a willingness to learn; at the end of the day what defines creativity? Am I a wanna be? thank you for your time in reading this.