I can imagine the first statue to be haunted by some neglected woman who returns with vengeance on her mind. Like Charlotte Lucas from Pride & Prejudice coming back wanting revenge for always being second fiddle to Elizabeth.

The facepalm angel has been content to remain a quiet spirit until his descendants unearth an embarrassing secret that awakens his wrath. He sets about trying to bury it again.

The cherub statue hides a demonic portal. The hero must find a way to destroy it.