Building on what illv said, I feel your best course of action would be to go on YouTube, and watch Gimp paint tutorials. There is plenty of good material there to get you on your way. Remember, it will require lots of practice, patience, and perseverance. But if you really want this, it is yours for the taking.
Last edited by evo; Sep 6, 2013 at 06:07 PM.
Reason: Fixed a grammar mistake