Uhg, I hate that feeling of "What if I ruin it?!?!" It feels so paralyzing! The only comfort I can offer is that (worst case scenario) if you've done it once, you *can* do it again, but otherwise, even if you feel like you made a mistake, *finish it*. You might surprise yourself that the "mistake" wound up giving it a whole new character! :)

I'm curious, what kind of markers/pencils are you using?

Hahahaha. I notice clothing b/c drawing it is the bane of my existence. Nudity, spandex, and lycra ftw!