I agree, the vocals sound too spaced out in my opinion, bring them in a bit..
There isn't much more you can add without it sounding messy.. it sounds quite nice but considering the deep vibe I would try and get the sub bass a bit deeper, surgically EQ 30-60hz up or consider changing the sub bass.
bring the hats out more, either using a longer reverb or widen them out, or both!
it sounds like you have two basslines bouncing off each other that interfere with each other at the same time.. maybe eq them away from each other?
Just my thoughts! really nice tune though and the vocals are delicious. yum.