I have to say...
This is well done, but he looks to small to be a berserker. His disproportioned anatomy was what made Brick the perfect berserker. Your character looks more like his special ability would act as a rabid psycho? Physical aggression mixed with extreme agility. (and that knife). I know Brick goes fast, but hes still a brawler.
By the way, there will be a Borderlands 2, so cheer up. Dont trust the fan forums at all, I heard rumors and hints dropped straight from Gearbox. :)