I could dance!
This is really nice!
The balance that you have is wonderful. The snare throughout the piece is at a superb level. A lot of people seem to overdo the snare, but you have it sitting at such a place that it enhances the texture without being distracting. The same with your use of marimba/mallet instrument.
The orchestration is really nice as well. I love how you double the piccolo and strings around :45 seconds in. On a different note, the subtle string patterns (like the grace note sounding thing at the beginning) make for a believable emulation of performers, even using virtual instruments.
Your use of dynamic contrast is also very thought out. It gives a certain organic feeling to the piece. You must have spent a fair deal of time on this piece. How long? What VSTs did you use?
I love this. The melodies are fun, and the instruments dance about one another in a fantastic manner. Wonderful! I can envision this in a professional film or video game.