"Hidden Fronts" screenshots hit the tubes

Not long after we announced the upcoming Multiplayer Map Pack for Gears of War, we were sent screenshots of the four arenas. We have to say, they look mighty nice. Our favorites being that of Garden and Bullet Marsh, which both really take the "destroyed" beauty motif to the next level. Process looks nice, with the eery yellow glow of the Imulsion surrounding the battlefield, but Subway looks kind of run of the mill in the available shots. What do you think of the levels? The rest of the map shots are available after the break.