Banksta, it's a start but I wouldn't say that the modeling phase is complete.
I have spent 20 years working in places like this as i'm a qualified heating and ventilation engineer and there are things missing from this room that just don't sell it as convincing.For example you have some sort of air handling unit or chilling unit on the floor but not a single pipe or cable attached to it.The round cylinder against the wall is either a clorifier or a boiler but again has only one pipe and no cables and there are no valves or gauges at all for control in this room.
These are just a few things that jump out at me straight away and I don't want to sound too critical so take this advise with a pinch of salt if you wish.

regards J.S.