This game is about you, escaping as a scientist from Black Mesa Headquarter, A new building build in 1956. This building we're used to hold some public project. Before you joined as a scientist, you need to do a training on a Hazard Course. The Black Mesa Headquarter is much the same as Black Mesa Research Facility itself.
The name sign is a placeholder
I need to edit the sign
Very nice. That house looks gorgeous and even that lovely custom made green Black Mesa truck looks brilliant. Some of the jeeps got their Black Mesa Logo mirrored. Best you shift the texture on that side towards the face direction.
A very negativ aspect is regarding the cliffs. They are all the exact same height. Vary the height of these brushes and it'll look x10 better. That being said some lanterns or flood lights onto the actual parking deck might improve things even more. Or how about other surrounding structures next to the building itself to enhance things visually even further.
Perhaps a power generator as seen in Opposing Force near the Crash site or a loading dock next to that green Black Mesa truck which delivers food supplies into that building.
Maybe some buildings carved into the rock like I did here:
Youtu.be See both that building carved into the rock and the rocks itself with their height differentiation.
There are many things possible to improve upon your great place. Good luck! It looks real good thus far. :)