The first previously aesthetically respectable cover to get thrown to this stagnant cesspool of haplessly talentless designers was Halo 3.
Former Mega Man NES box artist Rodney Baddraw, whose Mega Man work is routinely voted "worst box art in videogame history," was lazily trawling Craigslist for freelance gigs when he stumbled upon Bungie's ad. Being the only designer to agree to the payment terms of 800 MS points and a Cortana4Life temporary tattoo, he happily took the assignment.

Baddraw's first gaming gig since 1987 will do little to silence his critics.
As you can see, the results are already horrifying. Worse yet are his plans to butcher even more modern classics with his unique neglect of perspective, anatomy, color scheme and any logical cohesive relation to the actual game in question.
We're in his hell now. Stay tuned.