Mine varies once every couple of months.
But right now the main thing is that it draws inspiration from monotheistic religious fantasy, including things like the Divine Comedy, Paradise Lost, Kabbalism, Arabic poetry and folktale, and Orishic religions (such as Candomble, Santoria, and Vodun). It also includes "classical philosophy" from the Greeks and the Enlightenment, a general "mediterranean region" feel, and "tentacled horrors from beyond space and time".
Basically, I take Judaism, Islam, Christianity, and Oshiric religions, divest them of all their real-world trappings, re-interpret the world through their legends and beliefs, and slap on the idea of God as a machine and society and the Devil as Cthulhu and nature. So you have mechanical robot-angels singing calls to prayers from minarets built of gears and pistons, and horrible tentacled monstrosities stalking the dark woods of sin in the wild lands at the prehiphiary.
It's what a good fantasy world would be if people got over their resistance to including inspiration from some major real-world religions.
