Pros: The original, great aim textures. Good design and originality is good on the layout.
Cons: The lighting looks a little novice, but is just something to learn from! Using light fixture props or something else wont make it look like random spotlights or blobs of lighting on the ceilings, walls, and floors.
Improvements: Have the lighting make more sense.
Notes: It looks like a small mapfile which is good for aim maps, you kept i small and simple. But next map the lighting should make a little more sense. Otherwise, great job! Keep mapping!