Hopefully the "loading. . ." error will be fixed soon. But when it is:

Minion Zoo vs. galleries - galleries are much better. We need to be able to have categories that we can name and organize. Something to make the Zoo stand out would be great - maybe backgrounds for different categories, like a water background that we could put our watery minions in, or a forest, or farm, or mountain. Like a Pokemon storage box, anyone remember when you could do that in Sapphire and Ruby?

https://bulbapedia.bulbagarden.net/wiki/Pok%C3%A9mon_Storage_System#Wallpaper

Achievements would also be great - for how much time minions are in the Zoo, for having a collection of certain ones, or for having themed minions (all Blob Kitties or something.)