Well, you may think that this' been done a hundred times before, but I'd dare to say that this looked like a very nice chanceto do it. GTO shows themes like drugs, sexy girls, police chases, sexy girls in underwear, some gangster-like guys, sexy girls without underwear, motorcycles, sexy girls in bathsuit, thugs and no-joke bosses; and they seemed to perfectly fit for a Grand Theft Auto parody, and the fact that both avbreviations looked pretty similar (GTO - GTA) made me finish to make my mind.
That for the front, as for the back, I decided to go with the "Teacher" part of the anime, but withouth taking off the underground feel completely (You'd be able to notice some bricks that merge with the blackboard). As a curious fact, I found that rule already with the "Smoke Detector" thing, and seeing that Onizuka smokes a lot (And I mean A LOT) it seemed to fit. In resume, I went for a "Great Onizuka" style for the front, and a "Great Teacher" style for the back.
This is a great anime, It can be cataloged as Drama/Comedy, and It's awesome on every aspect. Tells the story of Eikichi Onizuka, a gang member who decides to be a teacher... to meet girls. The series has lots of dark humor, and If you use to enjoy it, this is a series you can't miss.
For a bigger size, check it out also at VGBoxArt and press "Full Size": [link]