Thank you for all your answers! The material number matched; it is the same product in all three pictures. Meanwhile, the parquet has been laid in additional rooms, and fortunately, the sorting in the packages used there has been somewhat calmer. This makes the other rooms look really more harmonious and we like it :) Apparently, we just had bad luck with the first packages, where the color differences were simply more extreme. We have now sorted out the boards we didn’t like from all the remaining packages directly. This should prevent any unpleasant surprises during further installation. Maybe here is also a tip for future homeowners: If possible, be on site on the day of installation and sort out boards you don’t like if necessary.