I posted a picture with different embarrassed expressions and asked my Discord server to give me one of my OCs and an expression to draw them with. These are the results.

Amity, top left, may have accidentally said something inappropriate. She's such a good girl, that would be an awful slip up for her. x///x

Tee, top right, is quite flustered by receiving excessive flattery. Please stop because she can't handle it, but also, please go on.. >:3

Ajna, middle, is a very humble one. She does not handle being thanked or adored for doing things she sees as necessary. She's just doing what anyone else would have. >_>

Aeris, bottom left, has been challenged by someone in public, who is threatening her status as top bitch. Whatever they said or did has her feeling a bit vulnerable, but she dare not back down without a fight. >8(

Aeris, bottom right, was caught off guard by an unexpectedly, but extremely, good looking individual. Not one to get flustered by looks alone, surely this person has simultaneously caught her attention through a combination of looks, action, and character. :3c