Spanish Comic Book Help!

Hey all! I just found out that for Spanish, I got a big project due. I have to create a 10+ comic book in spanish (for those that cannot read spanish, I'll post an English version on comicprints.deviantart.com as well as here). Any ideas would really help. I all ready know the plot. My only real idea though is that the comic book will start out real cheesy, like a 1940's DC comic book, and end up dark and gritty (similar to "Sin City"). Any ideas on what type of artwork to do?