Darkspine Shadow

[Star]

Actually, you need to change the way he moves and acts too, to make it look less like a recolor. You can change the way he looks alot this way and I would suggest adding two lines to make the design less bland. This also adds more personality to the character. Since it looks like you're still going to go through with making a Darkspine Shadow, I would imagine him having a cocky attitude or possibly insane. Here's some example sketches of what I'm talking about.
Use you're imagination!