very meditative and nice work - if you want input i can give you subjective on this - leave it as it is - a nice meditative piece - or use it as a base for an instrumental maybe but i find it nice as it is :)
In my opinion it needs a low, bass beat with a lot of depth and some other strongly effected high sounds. Something like using the high-hats with heavy effects to give non-drum sounds. I use that a lot and get some nice sounds from it. It helps me minimize synth use.