The design for my business card is finished!
While I'm happy with the basic concept of using the card to tell a two-part story, I can already see a mistake: the pixel dimensions of the files. I think next time (and there certainly will be a "next time") it would be wise to draw the artwork on a larger scale to ensure it'll print better; I might even outline and colour it in Flash since vector-based art resizes better than pixel-based art, but I was under too tight a deadline to get as comfortable with Flash as I am with Photoshop or Paint Tool SAI. Oh well, all good lessons for the next time a brilliant two-part story pops into my head!