It's early days for this, so early that there's really not much to say about the map itself. Generally the rooms are small, simple boxes so far which usually isn't too inspiring to fight in. You are doing a lot of things right, like sourcing your lighting, but some areas are ridiculously dark. There always needs to be some light so that the player can see.
One thing I would definitely suggest: You probably want to be thinking on a larger scale than building room by room. If you build one room at a time you'll probably end up with an incoherent map that doesn't make sense. It's better to plan the layout of your labs before you lay a single brush. Think logically about your environments: Would a passage off what looks to be a sewer be the only way into a flashy lab complex's foyer? Have a purpose for each room, it will make it easier to know what to build in there. Plan out the whole of the lab area on paper as a functional space, and plot what the player's route through it will be. Use whatever conceits you can come up with to block routes that would exist in a 'real' lab but which you don't want the player to use. Planning in advance will help you work because you can spot problems and reduce the risk of wasting time working on stuff that turns out to be wrong for the overall map, and knowing how far you have left to go can be a good motivator.
You don't need to include the .log and .lin files when you distribute your map. The .log is the compile record - which in this case says the map compile leaked, which you need to fix. The .lin is a file that can be loaded in Hammer to tell you where the leak is ('Load Pointfile' on the Map menu).
As far as ideas go: Get books on architecture, watch films and TV, go and look at the world outside! If you think about mapping whenever you look at things, you should soon find you have more ideas than you have time to make stuff in.
A few random inspirational sites that everyone should know:
Huge Japanese underground project
Urban and industrial decay:
You can find loads more useful stuff through Google image search and on photo sites like PBase as long as you can think of the right search terms for what you like.