In literature, the verb to BE can be left off of information added to describe something: “The woman was obviously in shock, her face [was] white as a sheet.” -or- “There are no waves in the ocean today, its surface [is] as smooth as a mirror.” Here, this phrase describes his demeanor: “You have my thanks, Mother,” he said, his relief [was] obvious beneath the formality. "Я благодарна тебе, мама", - сказал он, и его облегчение было очевидным, несмотря на формальность его слов.

You have my great respect, us Uly! My gratitude obvious more than the formality. Выпадение глагола Be в устной (правильной ) речи в такой ситуации не может быть?

*благодарен

hahahahaha, my pleasure Georgie)))

Нет, в устной речи это звучало бы очень странно.