Thanks for all your support @manouche! I'm glad this one had a particular effect for you - it's one of the most time-consuming works I've ever made! It's funny you mention weaving in a story around these hidden universes because for the last couple years I've been (slowly) working on a collection of illustrated shorts stories about similarly strange and unexpected worlds.
Haha I'm not sure where the leftover postcards ended up! (This project is from 2012.) They're probably hiding away in my closet somewhere. If I find them someday I'll let you know :)