Where did the idea come from? Was the creature, scene, shape that you drew never before seen until you thought of it? That's when it's truly original. If not, it was already there, and therefore not yours. If you back far enough, then everything can be considered theft. But if you look at it as self-expression, then what you have used was inspiration. There's countless examples of what you would call theft, but everyone calls art. Olympia by Manet. I failed to see where you provided any sort of reasoning for your position, so I cannot see where you are coming from. Plus you did not address anything of what I said, which leads me to believe that you are close-minded, one of the worst things an artist can be, no matter on what issue. If you really think that art is about ownership, the ownership of an idea, then I feel that you are sadly missing its point. "A guy who makes a nice chair doesn't owe money to everyone who has ever built a chair."