I think the best way would be to post some sequential samples. This will give prospective writers a sense that you can handle a sequential story ie; a comic. And as Mcmasters said it will show your style.
And yea it's great to start so young. I wish I could go back. Or at least travel back in time and give my 15 year old self a clout on the head. Does being 35 put me in the old fart club?