Anneka Wehnes has an American citizenship as her mother is from USA, and her father was born in Mexico but has attended Berkeley University and lived for a long period in USA, not sure but possibly he also holds an American passport.
Anneka was born in Madrid, but according to the Spanish law what rules in many European countries is based on jus sanguinis and not jus soli
So it explains why she hasn't got an Spanish Citizenship.
Her mother agency is Nass Models Barcelona, that also has an office in South of Brazil.
She has already shot with Willy Vanderperre for Document Journal and is featuring in 4 pages in the latest issue.