Level Design

[Kman]

From the screenshots you showed the main issue I see is your lighting. One by thing that waaaay too many people overlook is that light spreads. From what I've seen, your lighting seems to abruptly cut off most of the time (usually due to not using more light systems to spread the light, as I mentioned up there). A prime example of this would be the one with the window, the light coming from that would bounce off the floor and light up pretty much the entire room, but instead it only lights the area directly in its path. Also, whenever you place light entities you should be using pointlights to spread it out so it lights a more realistic area. Other than that this looks pretty solid, no other issues really pop out at me right now. Also, if you're lacking inspiration, it's totally ok to take a break for a while. After a while it's inevitable that you'll lose motivation, but that doesn't mean you have to completely scrap it, just take a littl time off and come back to it later.