1) Otaku* 2) Otaku is an extremely insulting word. 3) To call something "traditional" usually means it is very old and sacred. Moe-ness is more of a pop-culter-ish thing. Sort of. 4) Moe is used to refer to something both cute and fetishy. In Japan, cute is very similar to sexy. 4) I dont really think this needed a mature filter; Especially not 18+. Nothing naughty is showing at all.
Otherwise this is very beautiful and moe. You're very talented. Sorry if I was being mean. I'm having a crappy day... although this made me feel a littrle better.