Yes, without skill there is probably no graphics design. It is your ability to design that would make your work stand out. If you are adept in graphics works, no doubt you will be highly patronized by customers you did not even do advertisement to. If your skills is poor then no one would give you work because you graphical work would be very bad. So, skills and attention to details are what you need most as an artist in graphics design. Do not attempt to do graphics with having skills.