Thanks again to Uwe Wild we have some more images from the same museum as below 'depicting the battle of Chotin 1673, painted for the Polish king. They have the extremely dark originals in the museum in a dark room. No chance to get better photos'. They look good to me Uwe!
This is blogging gold as far as I am concerned - getting exposure (to an international audience) for paintings that might only be seen by a few enthusiasts otherwise.
I looked for information on the Battle of Chotin and came up with this page on the Ottoman Empire in the Seventeenth Century...
I feel inspired to have a look at Zvezda's Ottomans...PSR list of Ottoman Empire figs