This is absolutely amazing! Whether it was intentional or not, I really enjoy the texture on the piece. I'm also 11 (just turned on the 30th of August) and I doubt I would ever be able to pull something like that off. The only thing I would change about the artwork would be the character's slant (many beginners do it, nothing to worry about - you'll grow out of it). As a fellow 11 year old, would you mind checking out my submission (my second post) and critiquing it? Anyways, good luck!