I think, I really can use this for other pony expressions! well done! so but well, you really should practise more finness and proportion (it's near perfect, but not perfect at all) keep up the really good work, you do!
Her charm is more in her character than the accent or anything superficial like that. I would say I like her DESPITE the hat and accent because they seem natural with her, not contrived. Even then, she's not my favorite either