I've been playing with this one on and off for a few days. I LOVE it! It's very well done and the attention to detail is what seals it for me.
You know, I think one of my favorite parts is that you've arranged the sound effects/atmospheric effects so that I hear waterfalls one screen away from when I see them. It adds a touch of reality and I really like that.
I do wish it had an ending, though. I am such a goal oriented person that I have a hard time playing just for the sake of playing!