Hmmmzz...
You can create magnificent environments, but your sight for human anatomy is incorrect. That's what totally screwed the backgrounds. The demon who attacked the main characters childhood friend (?), looks great! And the kid crying about her daddy getting killed looked good also. But the purple succubus looked aweful. And the graphics were ''rough''.
The style, I think everyone deserves a good rating for style on one condition, wich is: If you made the flash by yourself, your own ideas, n such. (There is a difference between inspiration and ripping, btw.)
Sound was, yeah uhm... CRAP. Let's be honest. The music was ok, but the voices.. ugh. You definitely have to work on that point. I beg you to.
The interactivity, I still don't know the exact meaning of that word. But if it means how people interact with eachother, here it goes:
Your interactivity is a big illusion. It's like, hey let's kill that guy! Amagad der's un child der. *Both start to cry* That's just weird, you know. I think you thought that the illusion-interactivity would attract people, made 'em curious for the next episode. But for me, it works for the opposite. There is no clear storyline. I hate that.
If it means how the flash movie ''interacts'' with the viewer: A bit of the same as above. I mean, it's a bit of a blurry, vague storyline with no sense in it. So it's like watching to a brick.
Nothing @ Humor.
I really, really hope I've helped you, and that you will take my advice positively. Good luck.