Looks quite good actually, except for that zombie enemy.. that's not so hot :P

However, the rendering quality looks pretty dated.. no shaders or lighting effects or anything...There's no excuse for that nowadays. A6 has shader support, all games being mader now use shaders extensively. It look like the level geometry is just plain world blocks with lightmapping. This might have been good 4 years ago, but now, I'd be surprised if you can get a publisher interested.