You had mentioned mid range pricing (not luxury brand pricing) so my suggestions are based on that. I also suggested the kind of places you aren’t likely to find in Los Angeles (Latin American designers here). Also, since you’ll be here during Art Basel and just for two days, best to steer clear of Miami Beach.
 
Miami:
Shopping upper Buena vista + all day breakfast at el turco https://www.miamicurated.com/fashion/upper-buena-vista/
 
Dinner: amal in coconut grove (need to reserve)https://www.miamicurated.com/tag/amal-miami/  Another good choice which I’m writing up Monday is Aida Mexican seafood restaurant.
Earring shop coconut grove https://www.miamicurated.com/tag/fashion-jewelry-miami/ . Also, fun to walk around in the Grove a number of good shops like concept store The Bazaar Project.
 
Wynwood: latin american designers, boho hunter https://www.bohohunter.com/
Edgewater: another place, Venezuelan designers  https://vicky-victoria.com/