What next?

I'm a neophyte writer who has an awful lot to learn, but I'm not giving up :) I read somewhere that by the time you write 20 books you've actually become a decent author. Coincidentally, that's just about how many stories I have rattling around in my noggin, so there's hope! :D

Thus far, I've penned a 1920s cozy mystery (and will be working on its sequel in November), a Fantasy adventure, and a dystopian race against the clock tale. For fun, what do you suggest I work on next. More of the above? Something different?