Oh, and don't mention that the professor who wrote you to the dean was a first year professor in your addendum though! While that provides context to us, I don't think admissions would like it. Just and FYI.
"People who" is your indicator here. Group 1. "Not" is only functioning as a negation of handsome. There may be some exception I'm not aware of, but I don't think "not" by itself can function as an indicator. Just a negation.