A difference with the painting in the Royal Museum of Fine Arts in Brussels is that the red ball of the person on the left side of the horse has changed into a real face of a man!

More (partly) similar images can be found:

• Fischer Lucerne (Luzern) – Mandijn? - Details on Mirror image
• Finck – Brussels – Huys – Details
• Royal Museum of Fine Arts in Brussels
• Lempertz Cologne - Details
• Dorotheum Vienna – Huys – Details
• Louvre Paris – Huys – details
• Sotheby’s New York 2011– details – mirror (probably the same as at Lempertz Cologne 2016
• Sotheby’s New York 1981 and 2013
• Christies London 1972
• Bergé Parijs 2012 – Mirror detail