The phrase "Nosotros somos bien" is incorrect in Spanish because of the use of the word "bien." In this context, "bien" means "well," which does not correctly convey the intended meaning.
If you want to say "We are fine" or "We are good," you should say "Nosotros estamos bien."
Alternatively, if you mean to express that you are good people (in terms of character), you could say "Nosotros somos buenos."
So the corrected phrases would be:
1.