I think it will be worth us looking into this game for the visual style of our film. It is made to look like a chinese scroll very stylised and artistic. Here are some concepts on the scroll like ours and some screenshots of the game:
I like the skies in both of these.
The Game Play video:
This probably shows the style better, especially at the end when there are mountains etc
There is an art book that may really help us... may be worth you getting Dave? There is a video half way down with a flip through of the pages :)