What culture is she supposedly appropriating?
African/Black/Caribbean. Take your pick. One of em, all of em, it really depends on who you ask since cultural appropriation is so confusing and is in the eye of the beholder.
See her hair?...thats the issue some have. Is she appreciating the culture with that hair style or is she appropriating that hair style for fashion to be trendy/edgy/noticed.
See her bikini top?...it was at a Caribbean cultural celebration(hence the flag boobies).
I seriously have a tough time knowing what is and isnt cultural appropriation a lot of times. Cultures have intermixed for millennia and we have a global economy- so its pretty reasonable for fashion to be borrowed between cultures. If it isnt, what the 17 culture am I and am I supposed to take issue with people in other cultures that wear 1/4 zips and shorts?!?!