Mine is the 'Archduke Leopold's gallery' I first saw it in Petworth Place UK, which is near me but which I only visited relatively recently.  I just fell in love with the picture..  I had someone very special to me whose favourite painting was, 'The fighting Temeraire' - he took me to the National Gallery. London to see it as he loved it so much and wanted me to share his joy regarding the painting.. 
I am wondering, if other people have favourites? 
    
