Still photography in The Andy Warhol Museum’s permanent collection galleries is permitted for private, noncommercial use only. The use of flash, movie and video cameras, tripods, and camera extensions, like selfie sticks, is not permitted. Photographs cannot be published, sold, reproduced, or otherwise commercially exploited in any manner whatsoever. The Warhol is not responsible for any uses of visitor photography that infringe upon third-party copyrights or other rights.
I think anybody can take a good picture.