Three quick sketches that used recently for game/encounter maps. Might go back and add color, or lighting, for fun at some point. The drawings represent an abandoned keep that is one of a set of two. Both are set within a massive defensive structure in an underground city. The East keep (shown) has been damaged by age, a large section of it has collapsed in having been hit by falling debris from the cavern roof far above.
Here is a low detail map showing the surrounding setting for the two keeps. Planned on drawing this too but ran out of time before game night...
Crit and comment are welcome! Cheers.