Birth by Sleep Master Xehanort and his disciple

Maybe im imagining this, and i will remove the thread.. but
why does the outfit of the dicipel of Master Xehanort (the biker outfit) look so much like that of the Darkness Riku outfit, and why does the outfit of Master Xehanort looks just like the outfit of Xehanort keeper of Darkness?
what i think is that Master Xehanort and his Dicipel is about the same as Xehanort heartless and Riku.
(i think everyone allready knew that, and that there been threads like this before, but i want to know.)

 

Well seriously you know how ven aquo ect. Are kinda like Sora and them how they are on a beach their freinds Roxas and ven are identical. Well I think his dicipel is really one of the main people friends but like Riku turned evil wanted freedom ect. Then Xehanort changed him ect. to be his puppet. But unlike Riku he doesn't seem to be pure evil.
Just what I think.