John Theodore Heins (after) ( 1697 - 1756 ) was a painter. John Theodore Heins (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 457.73 USD for Portrait of a gentleman in 2004 to 9733.94 USD for Portrait of an Earl, traditionally identified as the Earl of Orford in 2006 , based on the size and medium of the artwork.