Vous êtes la plus magnifique tante. You are the most magnificent aunt.
My Aunt
''You are very handsome!''
that's very kind of you
It means; Its wonderful and beautiful
My Aunt x
Too bad you are taken.
you are like a (female) dog...
"Vous estes belles" doesn't mean anything. I would imagine the person is trying to say "vous etes belle", which would mean "you are beautiful".
"can you say incredible and magnificent?"
probably "le dîner magnifique" (the magnificient dinner)
Yes, it's very magnificent (very good).
It's like "super!", "great!"."That's a superbe idea!"