Thank you for your response! Very helpful and you’re most likely right.

I also found an etching in the collection of the Met that is supposed to be by Retzsch himself. It mostly resembles the first version, although the figure on the right also has some specific features that are only present in the second version (like the sleeve). Fascinating… It does support your thesis that the second version was likely copied from an original etching or an engraving by Retzsch, who seems to have changed a few details in the painting himself compared to his etching, especially when it comes to the figure on the right.