Let's start off with the basics.
1) Dark Fantasy
2) Science Fiction: moderate Steam/Dieselpunk (in Genesis), with a sprinkling of Cyber that's streamlined within a particular group/caste/region within the Kingdom Come series, but you'll just have to read it to see for yourself.
Ok, so take all of that, think of it like a buffet.
Got it? Good.
As you can imagine, that buffet would be FREAKING HUGE!!! There'd be no way to cram it all into a cohesive plate and no matter what, certain thing would stick out as odd—ya know, much like the person who gets all fried food, no salad or vegetables, but a huge portion of cake. Yep, we've all seen that person and we've all been guilty of it.
So, with that in mind, I picked what was most important to me. From looks (how it would visually translate on the page), to the historical and geographical realism (as those things relate to the culture of particular peoples throughout my world)—all of that equating to a little of this and a little of that until I had something I felt was satisfyingly mine.
How exactly I did this and where I drew the lines for which people, place and things—including combinations within what subgroups? That's something I'll cover in another post likely when the book is published, that way, I don't ruin anything before hand.
Finally, after all that, I'll let you in on the question I hate most as a writer...
What genre is this? Is it mixed?
AHHHHHHH! But now that you've beefed up your knowledge or were already well equipped prior to reading this, you tell me.