Okay people

I am here to show my last experiment on a graphic: Dark Sword shadings !
Yes, I've never ever done such dark sword, that's why !
But I need your help, and your suggestions actually for the handle !
I don't know what to do at all on this. I'd actually call this Demon Blade or w/e, so lemme know what you think of it and what best would fit with the blade !
And no, there is no part showing where the hand should go, because I'm making an attempt for a Graal Kingdoms sword type.
It's actually the maximum size I can have for the handle, don't make me edit it =P