Hannah Ferrier. Don Arnold#JM/Getty Images for Princess Cruises Australia Below Deck Mediterranean alum Hannah Ferrier shared new photos of 3-year-old daughter Ava that have Us feeling old. “My kid just got her first haircut… AUGH,” Ferrier, 37, captioned an Instagram post earlier this month, which featured photos of Ava’s new hairstyle. Bravo fans took to…