Shadow -Heir of the Black Arms

That could be Shadow's new look if he accepted to become the new leader of the Black Arms.
He's wearing Black Doom's shirt, some weird boots and he has a devilish spiky tail (and a lot of piercings!!! ).

More recent artwork on this concept here -> keirathetiger.deviantart.com/a…

Shadow the Hedgehog, Black Doom & the Black arms (c) SEGA & Sonic Team