The biggest difference between a hand pie and a turnover is the dough that the filling is encased in. Hand pies are usually made with pie dough, while turnovers are traditionally made with puff pastry.
However, steeped down in my pastry-driven soul was a healthy dose of skepticism because how can something look SO beautiful and also taste delicious? See, I've worked in bakeries and I know first-hand that at times (I am trying my best to be careful here) the fancy, high-priced, fussy treats can fall flat on flavor.