Don't be afraid to step out of the black/white zone of armor dyes. No reason to go full neon rave, but adding some accent gray colors etc makes the armor seem more natural.
Also, and this is all up to you, but mixing armor pieces makes a more original design that you can call your own.
That's one of the sexiest armor sets in the game, IMO, but Pip Clank raises good points.
If you like the high contrast look, an easy way to keep it while experimenting with other colors is by using either your dark (Midnight Fire) or light (White) as the base, and then replacing the other with a new color until you find one you like.
If you want a starting point for mixing armors, take a look at the human T3 set, which has a somewhat similar theme and revealing design, and see if you can find a mix that works.
You make this look good. No doubts there. I like the darker dyed look and lets be honest, not many would wear that top and consider it a "natural" look, no matter what the dye.
If you wanted, you could mix out some of those pieces and improve the overall look. I love the whispers set for swapping parts out with assassins (duelist). I'm not as big of a fan of the underboob armor (T3), but that's probably because its SO popular and even less practical looking than this set. That being said, I do like the T3 shoulders, gloves and boots, and even the T2 mask.
BTW, rox's quiver fits really well with her shortbow. Can't wait for them to bring it back into the gemstore.