Your name is John White, an scientist who escaped from black mesa in a car. After 1 week of driving, you find yourself with almost no fuel, you enter in a warehouse but you doesn't find anything useful. In total desperation you use a crowbar to break a vent, only to find the beginning of your journey...
Another lovely shot this looks really good except 1 thing. It's empty to empty.. Add more props to it. Either some posters, or wooden boxes or little power couplings, scientific gear anything will suffice.
Looking good, although add more rounded hallways, and maybe add more crates.