Well, the last part is pretty nice, but the build-up's fucked, really. I mean, randomness doesn't get you points. Always make sure there's a structure, PLAN, PLAN, PLAN.
I won't bitch about the drawings really, as I believe that's taken care of. But really, if you consider being an artist or writer, learn to plan.
Lastly, to everyone who's bitching he's 14. Age doesn't fucking matter, my little brother is fucking 14 and draws much better than your average more "mature" artist. Practice does make a difference, but age doesn't. Don't assume Everyone has the same magical age on which they start drawing. It differes with the person, and with the talent they posess (to learn faster), and the critism they recieve, and their stubborness.