Term - These are just my crits/ideas, you don't need to take them.
[Blocked Image: http://img222.imageshack.us/img222/8964/mycommentsam4.jpg]
1 - The prison sink from HL2 looks madly out of place. (atleast I think thats what it is.) It appears to be a very middle-eastern place, and randomly there is a sink. It also is way too low, unless it's meant to be something else. I'd rather see another spiritual well or something.
2 - I don't know, something about the enterence to this small room seems odd. You either enter through a smashed wall, or a lifted gate (The gate looks pretty bad too.) I just wish there was an actually desginated hallway arch.
3 - Maybe it's just me, but these appear to hang really low. I think you'd smash your head on them. When used in lostcoast the ceiling I think was proabably 256-512 units from the ground.
Looks awesome though. I really think this map would look great with some custom models/props.