[ She didn't think such a thing was possible. It truly is miraculous! Also she's blushing -so- hard. ]

O-oh ah.. [ The word you're looking for is 'Thank you' Marinette. ]

U-um, Thank you..! At least I'll try.

An I'm sure you're look great too! I mean, you always do, but I'm sure you'll look greater! No wait, that's..bad grammar. Um. Yeah, you'll.. [ Oh god kill her now. ]

You'll look good, I'm sure!