This HA needs something. I want it simple and organic, but it just needs something extra.

I like the simplicity factor here. Maybe a simple necklace or bracelet would do the trick? A ring even...

I personally dont like the way the shoes are looking with the outfit, but thats just me.

It's a bit lacking in the neck area. I'd say add a choker or a small collar to offset it. (probably the Black Ribbon Choker or Gothic Collar) A bracelet might help too, like the Nori Bracelet or something similar.

Also, and this is just personal preference, I'm not really liking the fishnet stockings, they're a bit blocky and distracting. Maybe switch them with the Black Sheer Pantyhose? I'd also suggest the Lacy Black Leggings if you want to keep a pattern on the legs.

Other than that, it looks really good. The simplicity works nicely.