Due to the map not 100% resembling the ingame, drawn map, there are sometimes blank spaces between rooms.
Most of the time these blank spaces are fairly easy to fill in, just add some elements that are already used in near the missing parts such as the same type of floor or wall, colour correct it and that’s it, but sometimes it’s a bit more complicated.
For example, while most of the rooms of Forgotten Crossroads map fit together both horizontally and vertically, there was one chunk that just wouldn’t work, no matter how I tried fitting it together.
I had to come up with a solution that looks good artistically but also stays true to the game.
In the end, I ended up using a similar connection from another room to fill in that gap: