The last place I would have thought to look for vintage-style shoes was Buenos Aires, but that is where QuieroJune's Handmade Shoes come from.
QuieroJune makes a range of leather shoes that are described as romantic, although I'd definitely add 'vintage' to that too. Mary Janes and t-bar styles feature heavily in the collection, as do some decidedly retro colour combinations. The pair pictured above cost around £115, which is the top end of the price range. If your size isn't available, you can request a pair is specially made. And they do worldwide shipping.
Visit QuieroJune's Etsy store to see the whole collection.