This is the first thing I've made so far that I think is actually good enough to share. It's not amazing, but it's OK.
I didn't design an interior, because I'm lazy. I just lined the inside with plaster wall instead. There are some random food and drink stalls inside and a couple of toilets (hopefully, if they've saved properly). If anyone wants to have a go at designing an interior, please do and share it here. I'd love to see it!
Workshop link for anyone who's interested: https://steamcommunity.com/sharedfiles/filedetails/?id=1937758703
