Killzone 2 looks pretty great! Also, however, looks pretty grey. And grey = bleak. Which is why director Mathijs de Jonge promises that the final game won't be as drab as early screens suggest.
Speaking with CVG, de Jonge says:
The first images that we released were just from one level that was still in early production, and I can assure you that the final game has a very rich and varied colour palette - and still manages to maintain that gritty and realistic look and feel.
Rich and varied? So, like...hot pink Helghast helmets? And deathmatch levels based on Rainbow Road? Love it!