I like it!
I like it, its got nice sounds and a calm feel to it.
Theres only a few things I'd change. For one Although it sounds nice..After all the sounds come in it seems to just repeat..Try throwing in some varity, mix it up a litte bit! As it is its extremly repative. A calm mind is a flowing mind. It can change without notice but still works smoothely.Therefore clam music should be music that can flow and can change the same way.
Also sence you were trying to make a calming song you should make the gituar a little louder and the piano a bit softer. Piano sounds can be shrill and will take away from the calming feeling. Also drums can break concentration, but I think an exception can be made for these drums. Music with base has a possibility of breaking concentration, or calm, and nothing makes base like drums make bass.
It sounds like you've been at it a while, and you've made a very good start for yourself! Please post more, even if its not all that great. You get much more advice for below average work then when a peice auctually sounds good, like this one and your Slim Santa song (Which was really funny XD). And make shure to appreachate every bit of advice you get. Even the borning bits you hear all the time. Follow this advice and you'll be improveing in leaps and bounds!