Wow, he looks really evil there. I love it. This looks like it could be a panel or a splash page of a comic book and the rest of the story is beyond my sight even though its something I really want to see.
I mean, seriously! He stripped Future!Dexter (or Number 12 in this case) down to his underwear, restrained him, and then WHIPPED HIM, on video, for the the ENTIRE workplace to see... all because he was ALMOST late for work. And it's implied that he's done this to him before.
If that didn't put Mandark under the TV Trope of "Complete Monster", I don't know what will!
*takes deep breath*
Hehe, sorry for the slight rant. Again, AWESOME pic!