This is great!  The ideas are very interesting! 
I especially like what you do with the percussion. It's got a great realistic feel to it, and I love that!  
It might be just me, but I feel like something's missing in the first 19 seconds. I can't say what it is exactly, but anyway. Maybe it's just my personal tastes messing around.  
Oh and I'd love to hear those pads a little bit louder!  I think they deserve more respect in the mix, but again, that's just me.  
That's a great start! I can't wait to hear what's coming!