Nanna Hänninen ( 1973 - ) is a Finnish painter. Nanna Hänninen s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 3601.8 USD for Airport of Ponta Delgada in 2007 to 4678.11 USD for Airport of Ponta Delgada in 2014 , based on the size and medium of the artwork.