It's cheesy enough, I think ;) A very nice spread out mix, good build up without being too overwhelming. The thickness of the bass is quite effective. I like the light touches like the high keys at 2:25 and the gong at 2:23. Good chill vibe. As far as variety, I guess that depends on the singer. I think a female singer would work best, or something in a high register, to compliment the low bass line. If the vocal melody is in contrast to the fairly simple instrumentals, then that should fill out the track well enough. I look forward to the finished version.