It looks GREAT! I love the brushwork and your custom textures. I love the map in all its little details. I love the mood. I love the achitectural solutions.
One thing is not lovable however: The FPS... The large open space in the center makes most things visible from most places, dropping the FPS a bit to low for an enjoyable game. If you want the map to actually be played, you need to optimize the FPS a bit ( And it so happens I made a tutorial for just your situation called Vis_Leafgroup "hands on" tutorial ).
If this is not enough, you will have to insert brushes to block "line of sight" in the worst places.
But most of all: The mall ROCKS!!!
/Bjarne






