It's ADHO's design that's why . I presume you can use it but you might just want to send him a PM first. I like the Jedi as well, but you might need to create a brickshelf account or flicker or something because EB's doesn't let you keep attacking images indefinitely .
As far as I'm aware ADHO and I use the same templates, it looks like CC-0666Grenade does as well, and ARC Commander Sparky, darthnihilius, and CloneTrooperSergeant use modified versions of ADHOs work.
It's OK Harmon79, making these is fun and this was a challenge, I'll see about making some of those characters for you soon.