For me I had no trouble seeing the characters in DC as humans even if they weren't, that was never my trouble. In fact I love non-human heros, and have no trouble connecting to them, weather they are elfs, fairies, animals, or fraggles...
My trouble is that the world of the DC was very pretty, but so much of it is not talked about and just goes by, and I feel like I am missing a lot..and as a writer that annoys me...It's like if Star wars or Star Trek had stopped at one movie or episode and the makers had said 'there's the universes world, understand it!' ...It's not the fact that their not human, it is that a lor of depth is lost IMHO, and poor Jen's character sort of feels a bit cardbroady because of it to me (which any character would if you take away/don't show a lot about their race, even humans. If humans were in a fantasy I'd still like to feel what made them themselves).
DC felt to me like it was more in a bubble than Labyrinth ever was (not that that is a bad thing). I could feel there was danger in Labtrinth but it is more understated, it's not the same type. Sort of like how Jareth is not is not the same type of villain..and I won't want him to be
. But I am one of the few fans that even as an adult thinks that the labyrinth is a real place vs. just being Sarah's dream and that still thinks the ending was a real let down (Somehow there seems to be this idea that as an adult fan you're suppose to love the ending and think that baby Toby and Sarah staying there would have been the worst thing ever but, meh. If I was Sarah's age and that happened to me, I would have stayed. Yes, I know, selfish, selfish, baby hater, boo hiss -.- I guess at heart I think Jareth and I would have fun fighting with each other :3) For all the 'growing' that Sarah is said to do she does not seem to change at all to me, she's still just reading from the book :\.
But that is what I meant about Labyrinth being understated, it is really an evil that makes you think...DC's evil was just evil evil that had all its goodness split from it (not that there is anything wrong with that)