Amy's speech is quite a bit more intelligible now (even to untrained outsiders); at the same time, she seems to be more self-conscious about her speech and will occasionally refuse to say something she can't say "properly", rather than simply giving it her best attempt.
It's occasionally possible to trick her, though :)
Sample exchange from today:
Stella: Sag mal „Benjamin“.
Amy (who finds this name difficult to pronounce, tries to avoid saying it): Das darf ich nicht sagen!
Stella: Was darfst du nicht sagen?
Amy: „Nemmin“ darf ich nicht sagen!