Needless to say, this is really good. It reminded me of Princess Mononoke, already a masterpiece in its own right, you couldn't have brought any more justice to your artwork of choice.
I only wish the strings were just a little more airy and distant, perhaps with a bit more of reverb you could have really brought them to life. The part at around 1:40 feels a little cluttered due to the cellos overwhelming the mix a little and the guzheng doing its job as it should, but other than that, the overall mastering is quite professionally performed and every perceived "flaw" doesn't really detract from the experience.
Really great job
//FD