Wow... looking at your score scares me! However, it is neat, and i like organised and neat scores. alot.
It does work extremely well as a companion piece, as aforementioned, however my view of the watercolour isn't as dark as your music makes it out to be. In saying that, the mystique and depth are definitely there. Very atmospheric and undulating. A nice piece.
I like Ravel also, but mainly La Valse and other works of this vein. Your stuff is very different to my style indeed...i am more a fan of excitement and driving pulse etc. I like this work though; very interesting to look at and listen to and lull to.