I am a Peruvian Native. I think his designs are ok. They seem to be based on the Caporales dancer costumes and the typical Native garmets. If they have to be based on the traditional the buildings should be based on traditional architecture from Incan other Peruvian/Bolivian civilizations. And maybe, if possible, something that can be imagined by extrapolating what Incan/Other peruvian civs architecture would look like if the culture had been allowed to survive for another 500 years.