Not bad work with the pads my friend.
Of course In my opinion for it to be a better ambient piece...maybe make the pad leads introduce the track..and maybe inlcude some reverbated(or even chorused) bass...(maybe some sub bass)
And i mean just the pads...no percussions or anything like that...just kinda make it smooth with the help of Low Pass filtering.
Food For Thought.
Will try your suggestions :)