Oh MY!! Those are 3 very nice bags. I own the Tivoli and the BH.
The Tivoli is softer looking and love the adjustable handles and the pleating, can take you from jeans in the afternoon to out to dinner at night with your little black dress.
The BH is more a casual bag, but is my go to bag for everyday run errands.
The Montorgueil has not been released in the US so have not seen it in person, looks like a nice shoulder bag, but I prefer the other 2