Hey VI, nice features!
Personally I think that the album management should also allow to set permissions PER album.


Album features:

"Allow comments in this album" - yes/no
"Private album" = only own user and admin can see
"Protected album" = password protected album so only .. friends can view(ofcourse admins overrule this protection)
"Public album" = everyone can view

Image features:

"Allow comment on this image" - yes/no (if allow comments in the album the image is uploaded to is set to NO, this will obviously NOT matter)
"Private image" = Sometimes you only want to have a single image in an album as private
"Protected image" = Same as with albums
"Public image" = Same as with albums

These are just some of the things that I can think of right now..