Yeah the big thing to think about as far as scale is, think about a third person camera like WoW where it’s behind and up in the air some. If the height/scale of rooms and doorways are too tight, that camera is going to be stuck in the ceiling. Not a big deal for a first person game but since this is modular and I’m sure you want to cast the biggest net on people who purchase it, making sure it works great in 3rd person and multiplayer/combat spaces is key. It’s good to hear there are options though.
It looks gorgeous. I already have your Dwarven set. I’m also hoping you do more fantasy, High Elf/Dark Elf/Halfling/Barbarian/Orc etc. And yeah. more game of thrones stuff would be awesome.