TrinityTheLostFlame - so! i... think this might be by design. "Public" is the option for "anyone can view this" and image rights are not the same as character rights so anyone can view the image if they can someone get a link to it, either by going to the profile or through your art tab. If you don't want anyone to see the art unless they're authorized/use a key, you'll need to actually set "Public Viewers" to hidden!
xo_dicevire - sadly until toyhou.se allows users to set custom creation dates that won't be possible. there's two work arounds - using flattened folders to sort characters or custom sorting your characters.
Zackarii & Mortymer - yeah that's... one of the problems with sub-galleries / tabs :| as mortymer said, every time you pick a character for something, you have to tell ToyHou.se to not show tabs which... is a pain. I want to say someone had put it in the QoL thread but no idea when's the last time that's been updated sorry :(