While he doesn't look like much (as a Bionicle MOC that is) this character has remained dear to my heart since I was in 7th grade. My friend and I would create these huge, awesome, even epic stories out via Bionicles, and those are some of the greatest memories I've had.
I've slowly been working on upgrading him since. If you want to see any of the past versions, search Brickshelf for ShadowBladeZern (member) which will be me. (look at any of the albums named ZERN). There's also more pictures of him up there as well.
But what I did to improve this version was I sculpted a little hood on the back of his mask, added spikes to his shoulder plates, added a small bit to the edge of his swords, and sculpted spikes on his shoes as well. I plan on getting some of the black Hero Factory axle hands soon, along with some rubber bands so I can make him even better. I also added the cape with some sort of fabric I had from a stretchy tanktop I never wore.
Any of the color (aside from the silver, black, and dark blue) was added either with sharpie, or copic marker.