Joseph Ambrose (mraz) Frost ( 1953 - ) is an Australian painter. Joseph Ambrose (mraz) Frost s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4988.84 USD for The Decoy at Mends Street Jetty, Evening in 2005 to 11027.96 USD for Perth, from Kings Park in 2005 , based on the size and medium of the artwork.