1. "Wasted potential"? Pah, I say! Practice is practice; by drawing all that art, not only are you showing your love for an excellent franchise, but you're working at refining your art skills with every picture, too! If you love it, draw it! :) The subject matter isn't an issue.

13. How so? I always figured it was more of a parody, but I could easily be missing something. But I love to learn and I'm curious to hear other's interpretations!