The first one is the idea of breaking the servers down where anyone can carry it and be a relay. 3/10

The second is the idea of one key allowing you to multiple clients/apps indicated by the variety of thing behind the doors. 5/10

The last one I love because metaphorically it captures multiple ideas about nostr “don’t put all your posts in one server”. While being playful bringing the mascot to the picture and making it the user, the one who posts notes.