I've seemed to notice quite the opposite of what nimture said. Those places both light and dark are as the artist says, in and of each other. Also, I think that not everyone sees forest as dark and forboding. Nature can be quite beautifuland serene, as compared to a human city, where things get ugly pretty fast.
I love the idea of two sides to their world, the blue one is colorful and full of life, like a human city; whereas the deeper red one is mysterious with an ominous aire, like an ancient forest, or a haunted house, you know those places mother tells us to stay away from, yet we don't listen, or at least that's my view
this is amazong. very david lynch like. wonderfully done all around!!!
how did i get here from "There she is!!" 0.o
for some reason...
... I was reminded of G.I.R. from invader zim, goin' like doodee-doodee-doodee-doooo!