My congratualtions on being one of the few fan-artists to get Applebloom's human costume right (at least in my eyes). She's a l'il farm girl - she wouldn't wear cute dresses except to special formal events. Her normal wear would be dungarees, as shown here, probably Applejack's hand-me-downs.
As for Rarity? Well, I have no sympathy whatsoever. If years of dealing with Pinkypie and Rainbow Dash hasn't hardened her hearing against shrieks and other continual loud noises, nothing will.