I love the slow, ambient feel on this one. As an avid pen and paper geek, I can already imagine the use of this song as background music in a dozen different scenarios - it has that simple yet interesting and versatile flow that is really welcome in any ambient song, at least in my view.
The general mood of the songs somehow invokes the picture of a frozen-over cavern with waterfalls held still by the ice, as though the entire song is merely an echo in a large enclosed space stopped by the frost.
The combo of the slow reverbed pads and the occasional guitar and bell melodies creates a soothing feel that just has to leave a sense of peace in the listener. The resonating keeps the entire set very calm, while leaving enough room for variation not to make it boring. Extremely relaxing and mellow. A song to fall asleep to, but in the good way. The best way possible, actually.
All in all, an excellent piece, and definitely a welcome addition to any chill out soundtrack I could think of. Nice work on all of your accounts! ;)