Bizarrely inaccurate. The average female height is highest in the Dinaric Alps, Bosnia and Herzegovina, Montenegro, Belgium, Iceland, and the Czech Republic. It is lowest in Bolivia, Indonesia, Guatemala, Bangladesh, Nepal, Peru, and Sri Lanka. The only measurement conforming with the picture is the tall height of Slavic women. Chinese women are 5'2" on average while non-Hispanic white and black women from the United States are 5'4". Women from Saudi Arabia measured at 5'1".
Hispanic women being tall and thin compared to blacks is a lie. Hispanic Americans (who are racially mestizo) are measured at 5'1", lower than the height in Nigeria. Even hispanic women with much higher European racial admixture (from Spain, for instance) measure 5'3" (identical to Nigeria and shorter than US blacks). Hispanic women in the United States have an obesity rate of 50% compared to 54% for blacks.
The other accurate part would be black women having higher BMI: non-Hispanic blacks in the United States have an obesity rate of 54%, compared to 50% for Hispanics (making the "Hispanic woman" being much taller and thinner than black women a lie). Also, Arab countries consistently rank very high in average BMI:
https://en.wikipedia.org/wiki/List_of_countries_by_body_mass_index. This fact actually surprised me. So if the chart wanted to be accurate, it would display Arab and Hispanic women as inordinately fat.
The chart also (roughly) attempts to present Slavic, Asian, Hispanic, and Arabic Women as approximately equally attractive, but this is empirically false. The famous OKCupid table showing racial differences in matches shows that Latino and White men (who together I would assume constitute a vast majority of the users on a US-based dating site) have the ranking 1. Whites (who will presumably be western whites), 2. Asian, 3. Latina, 4. Black. Asian males swap Asians with Whites from these rankings, and black males like Latinas and Asians while slightly disliking black and white women (at an equal rate).
Thus, in terms of attractiveness, the chart would be inaccurate if judged as a whole but more accurate if judged from the viewpoint of an average black male.
EDIT: OKCupid's racial data is at
https://theblog.okcupid.com/race-and-attraction-2009-2014-107dcbb4f060