The L shape are birthdays. The "castle" pattern are the number of days in a month.

* nostr:npub1hm63f02cer8w5jltne4cf2xeswf477lzday7zn0kszv0rwnyz4hqcmzr0p

Nostr doesn't have an edit button?😂

Today I got the last one missing badge of the 13 @THNDR has created, check them at https://badges.page/p/bef514bd58c8ceea4beb9e6b84a8d983935f7be26f49e14df68098f1ba64156e. And for now I can say I am the only person to have them all! 😎