To give you some insight into the kinds of weirdness I find inspiring, I have recently read through Evan Dahm's Rice Boy webcomics (http://www.rice-boy.com) and been struck by the mix of epic fantasy, surreal strangeness, and terrible strangeness of the world. In many ways, this is the kind of weirdness I want out of Athanor, but with less of a high fantasy feel and more of a sword and sorcery meets Edgar Rice Burroughs feel.
Of course, RPGs are different works than comics or literature, and no DM should feel too attached to things like mood, feel, or themes. Players will trample your favorite ideas and insist on their own, and that's how collaboration just has to work. Still, there is still some value in starting with a vision, so long as you don't go out of your way to cram it down your players' throats.