well it is a bit short but I guess you kinda knew that ;-)
I like the sounds you use, the track has a warm feel to it, and these nice echoes allways give me the feeling of being underwater, I like. The drums could be a bit closer to the listener, while I like the far away feeling that the other sounds generate I personally would like the percussion more in the center, if you know what I mean. I would be interested what you plan on doing with the 3-6 minutes that follow the 1:30min you posted.