I think it would look much better if everything behind it were painted satin black. I know you said there's nothing else on the car that's black, but IMHO, you should never be able to see anything behind the grille.
I would paint everything behind it black, and tint the headlights just a bit to make them less noticeable. I would also paint all of the vertical bars that hold the grille together black also. Doing all this would put the focus on the grille itself, and not all the stuff behind it. It would look pretty clean then.
