John Medina ( 1721 - 1796 ) was a British painter. John Medina s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 752.29 USD for Portrait of Lt. Gen. the Hon. George Ramsay in 2008 to 5000 USD for PORTRAIT OF A LADY in 2013 , based on the size and medium of the artwork.